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Open Access
Review article

Evolution and Trends in Financial Inclusion Research: A Systematic Literature Review and Bibliometric Analysis (2004–2023)

veronica paul kundy1,2*,
kamini shah1
1
Department of Business Studies, Sardar Patel University, 388120 Vallabh Vidyanagar, India
2
Department of Accountancy, College of Business Education, P.O Box 2077 Dodoma, Tanzania
Journal of Accounting, Finance and Auditing Studies
|
Volume 10, Issue 4, 2024
|
Pages 179-192
Received: 08-08-2024,
Revised: 10-13-2024,
Accepted: 10-24-2024,
Available online: 10-29-2024
View Full Article|Download PDF

Abstract:

This study examines the development and trends in financial inclusion research between 2004 and 2023, with a focus on the trajectory of publication growth, key contributors (including influential authors, journals, and institutions), and dominant themes within the field. A systematic review and bibliometric analysis were conducted following the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) framework. A total of 1,784 articles were identified from the Scopus database for inclusion. Analytical tools such as VOSviewer and Microsoft Excel were employed to explore publication patterns, citation networks, and thematic concentrations. The findings reveal a marked increase in financial inclusion research, with 2022 recording the highest output, contributing 473 publications. Among scholars, Ozili emerged as a leading author with significant influence in the domain. The Journal of Sustainability (Switzerland) was identified as the most prolific journal, publishing 173 relevant articles, while the University of International Business and Economics in Beijing, China, was found to be the most productive institution. Keyword analysis highlighted recurring themes and revealed underexplored areas, offering promising directions for future research. This comprehensive analysis not only provides insights into the past and current state of financial inclusion scholarship but also identifies gaps that warrant further academic investigation. By offering performance metrics and mapping the evolution of the field, the study serves as a valuable resource for scholars and practitioners seeking to understand emerging research trends and guide future inquiries.

Keywords: Systematic review, Citation analysis, Co-occurrence, Bibliometric analysis, VOSviewer, Financial inclusion
JEL Classification: G21; G23

1. Introduction

Financial inclusion is widely recognized as a crucial component of economic growth and financial well-being (H​i​d​a​y​a​t​ ​&​ ​S​a​r​i​,​ ​2​0​2​2; P​u​s​h​p​ ​e​t​ ​a​l​.​,​ ​2​0​2​3). It entails the intervention strategy that seeks to overcome the market friction that hinders the market from operating in favor of the poor and unprivileged (M​i​n​d​r​a​ ​&​ ​M​o​y​a​,​ ​2​0​1​7). Scholars add that financial inclusion is a determined effort to ensure accessibility, availability, and usage of essential formal financial services and products to all participants in the economy (A​g​g​a​r​w​a​l​,​ ​2​0​1​8; P​u​s​h​p​ ​e​t​ ​a​l​.​,​ ​2​0​2​3). Similarly, financial inclusion has been argued to be an essential policy tool that can help to achieve inclusive development and address sustainable development goals (SDGs) (P​u​s​h​p​ ​e​t​ ​a​l​.​,​ ​2​0​2​3). Furthermore, financial inclusion lowers income disparity by enabling people to manage financial risks, make an investment in the future, streamline their intake, and provide incremental and complementary ways to combat poverty (A​d​u​d​a​ ​&​ ​K​a​l​u​n​d​a​,​ ​2​0​1​2; G​r​o​h​m​a​n​n​ ​e​t​ ​a​l​.​,​ ​2​0​1​8).

In this regard, financial inclusion aims to bring the unbanked into the formal financial system so that they can learn, understand, and utilize financial services and products (T​h​o​e​n​e​ ​&​ ​T​u​r​r​i​a​g​o​-​H​o​y​o​s​,​ ​2​0​1​7), ranging from savings (C​h​h​a​t​o​i​ ​e​t​ ​a​l​.​,​ ​2​0​2​1), credit ecosystems (A​r​u​n​ ​&​ ​K​a​m​a​t​h​,​ ​2​0​1​5), institutional investment, financial intermediaries assisting with investment (R​a​m​a​k​r​i​s​h​n​a​ ​&​ ​T​r​i​v​e​d​i​,​ ​2​0​1​8), payment systems (C​h​h​a​t​o​i​ ​e​t​ ​a​l​.​,​ ​2​0​2​1), insurance (A​d​u​d​a​ ​&​ ​K​a​l​u​n​d​a​,​ ​2​0​1​2; M​o​s​s​i​e​,​ ​2​0​2​2), and encouragement of small businesses and facilities to assist with financial services (D​e​l​l​a​ ​P​e​r​u​t​a​,​ ​2​0​1​8). In finance, banking and other regulated institutions such as credit unions, microfinance institutions, mobile money service providers, and other digital platforms are cited as formal providers of financial products and services for implementing the financial inclusion strategy for national economic growth (D​e​m​i​r​g​ü​ç​-​K​u​n​t​ ​e​t​ ​a​l​.​,​ ​2​0​2​2; K​u​m​a​r​ ​V​a​i​d​ ​e​t​ ​a​l​.​,​ ​2​0​2​0). Thus, financial inclusion is the ease of accessibility, availability, and usage of formal financial products and services for all economic participants (K​i​m​ ​e​t​ ​a​l​.​,​ ​2​0​1​8).

Highlighting the reasons for different scholars and policymakers to develop an interest in financial inclusion, studies show that financial inclusion is the primary tactic to fulfil the SDGs of the United Nations (O​z​i​l​i​,​ ​2​0​2​0; S​h​a​h​ ​&​ ​A​l​i​,​ ​2​0​2​2). Likewise, through financial inclusion, marginalized households may better manage risks, absorb shocks more efficiently, improve their investment ability in tangible assets, strengthen their ability to smooth household consumption, and invest more in health and education (M​o​l​e​f​h​i​,​ ​2​0​1​9; R​u​m​b​o​g​o​ ​e​t​ ​a​l​.​,​ ​2​0​2​1). Also, in developing nations, financial inclusion has been witnessed to lower the unemployment rate (M​e​h​r​y​ ​e​t​ ​a​l​.​,​ ​2​0​2​1). Similarly, financial inclusion increases social inclusion in many nations (O​z​i​l​i​,​ ​2​0​2​0; S​h​a​h​ ​&​ ​A​l​i​,​ ​2​0​2​2). In this regard, policymakers in several countries continue to devote enormous resources to raising the degree of financial inclusion in their nations while targeting to lower the severity of financial exclusion issues (O​z​i​l​i​,​ ​2​0​2​0). Subsequently, inclusive finance can assist in bringing poverty down to a desired minimum (O​z​i​l​i​,​ ​2​0​2​0; S​h​a​h​ ​&​ ​A​l​i​,​ ​2​0​2​2). Finally, financial inclusion nations have been found to have an opportunity to widen numerous socio-economic advantages for developing countries (A​l​i​ ​e​t​ ​a​l​.​,​ ​2​0​1​6; S​h​a​h​ ​&​ ​A​l​i​,​ ​2​0​2​2). Thus, financial inclusion performs a catalytic role in combating poverty levels in the economy.

Reviewed studies have indicated several scholars focused on financial inclusion with distinct themes (A​z​i​z​ ​e​t​ ​a​l​.​,​ ​2​0​2​1; B​a​k​a​r​ ​&​ ​S​u​l​o​n​g​,​ ​2​0​1​8; H​a​n​i​e​f​ ​&​ ​W​i​d​y​a​,​ ​2​0​2​3; T​a​h​a​,​ ​2​0​2​0; Y​a​n​i​n​a​ ​&​ ​U​r​i​a​r​t​e​,​ ​2​0​2​3). Thus, the list of these previous studies is exemplified in Table 1. Likewise, most of the reviewed studies were based on a single type of review such as empirical, scoping, theoretical, systematic, and bibliometric (A​d​u​d​a​ ​&​ ​K​a​l​u​n​d​a​,​ ​2​0​1​2; A​z​i​z​ ​e​t​ ​a​l​.​,​ ​2​0​2​1; B​a​k​a​r​ ​&​ ​S​u​l​o​n​g​,​ ​2​0​1​8; C​h​h​a​t​o​i​ ​e​t​ ​a​l​.​,​ ​2​0​2​1; D​e​m​i​r​g​u​c​-​K​u​n​t​ ​e​t​ ​a​l​.​,​ ​2​0​1​7; D​h​u​n​g​a​n​a​,​ ​2​0​2​2; F​e​r​n​á​n​d​e​z​-​O​l​i​t​ ​e​t​ ​a​l​.​,​ ​2​0​2​0; G​a​l​l​e​g​o​-​L​o​s​a​d​a​ ​e​t​ ​a​l​.​,​ ​2​0​2​3; H​a​n​i​e​f​ ​&​ ​W​i​d​y​a​,​ ​2​0​2​3; K​i​m​ ​e​t​ ​a​l​.​,​ ​2​0​1​8; T​a​h​a​,​ ​2​0​2​0; T​h​o​e​n​e​ ​&​ ​T​u​r​r​i​a​g​o​-​H​o​y​o​s​,​ ​2​0​1​7; S​a​y​,​ ​2​0​2​2). Also, few reviewed studies were country and region focused, such as Kenya, Colombia, low-and-middle-income nations, developed nations, South-Asian nations, and OECD nations (A​d​u​d​a​ ​&​ ​K​a​l​u​n​d​a​,​ ​2​0​1​2; D​h​u​n​g​a​n​a​,​ ​2​0​2​2; D​u​v​e​n​d​a​c​k​ ​&​ ​M​a​d​e​r​,​ ​2​0​2​0; F​e​r​n​á​n​d​e​z​-​O​l​i​t​ ​e​t​ ​a​l​.​,​ ​2​0​2​0; H​a​n​i​e​f​ ​&​ ​W​i​d​y​a​,​ ​2​0​2​3; T​h​o​e​n​e​ ​&​ ​T​u​r​r​i​a​g​o​-​H​o​y​o​s​,​ ​2​0​1​7). Thus, there is a scarcity of studies combining systematic literature review with bibliometric analysis to attempt to examine the breadth and rigor of financial inclusion across the globe.

Table 1. Summary of the extant reviews in the financial inclusion domain

R

Author(s)

Year

Review Scope/Focus

Reviewed Documents

Time Frame

Type of Study

1

A​d​u​d​a​ ​&​ ​K​a​l​u​n​d​a​ ​(​2​0​1​2​)

2012

Inclusive finance and stability of the financial sector

unknown

Literature review

2

T​h​o​e​n​e​ ​&​ ​T​u​r​r​i​a​g​o​-​H​o​y​o​s​ ​(​2​0​1​7​)

2017

“Financial inclusion in Colombia”

73

unknown

Scoping literature review

3

D​e​m​i​r​g​u​c​-​K​u​n​t​ ​e​t​ ​a​l​.​ ​(​2​0​1​7​)

2017

Inclusive finance and growth

unknown

Empirical review

4

K​i​m​ ​e​t​ ​a​l​.​ ​(​2​0​1​8​)

2018

“Mobile financial services, financial inclusion, and development”

54

unknown

Systematic literature review (methodological)

5

B​a​k​a​r​ ​&​ ​S​u​l​o​n​g​ ​(​2​0​1​8​)

2018

Inclusive finance and economic growth

unknown

Theoretical and empirical review

6

T​a​h​a​ ​(​2​0​2​0​)

2020

Blockchain technology and financial inclusion

64

2010-2017

Systematic literature review

7

O​z​i​l​i​ ​(​2​0​2​1​)

2021

Inclusive finance

Post 2010 studies

Review

8

D​u​v​e​n​d​a​c​k​ ​&​ ​M​a​d​e​r​ ​(​2​0​2​0​)

2020

Inclusive finance in low- and-middle-income nations

32

unknown

Review of reviews

9

C​a​p​l​a​n​ ​e​t​ ​a​l​.​ ​(​2​0​2​1​)

2021

Financial inclusion in OECD countries

148

Oct 2015-Nov 2015

Scoping literature review

10

F​e​r​n​á​n​d​e​z​-​O​l​i​t​ ​e​t​ ​a​l​.​ ​(​2​0​2​0​)

2020

Inclusive and exclusive finance in developed nations

52

2009-2018

Systematic literature review

11

A​z​i​z​ ​e​t​ ​a​l​.​ ​(​2​0​2​1​)

2021

Digital banking and financial inclusion

126

2014-2020

Bibliometric review (descriptive)

12

C​h​h​a​t​o​i​ ​e​t​ ​a​l​.​ ​(​2​0​2​1​)

2021

Financial inclusion

463

2000-2020

Bibliometric review

13

S​a​y​ ​(​2​0​2​2​)

2022

The states of financial inclusion

171

1956-2022

Bibliometric review

14

D​h​u​n​g​a​n​a​ ​(​2​0​2​2​)

2022

Inclusive finance for inclusive growth in South-Asia Nations

76

unknown

Systematic review

15

G​a​l​l​e​g​o​-​L​o​s​a​d​a​ ​e​t​ ​a​l​.​ ​(​2​0​2​3​)

2023

Visualizing the academic literature on digital financial inclusion

387

2021-2022

Bibliometric review

16

H​a​n​i​e​f​ ​&​ ​W​i​d​y​a​ ​(​2​0​2​3​)

2023

Islamic financial inclusion

186

2011-2023

Bibliometric review

17

Y​a​n​i​n​a​ ​&​ ​U​r​i​a​r​t​e​ ​(​2​0​2​3​)

2023

Financial inclusion and gender gaps

142

1996-2021

Bibliometric and analytical review

Studies affirm that a combined systematic literature review with bibliometric analysis allows researchers to comprehensively examine existing literature on a particular concept, such as financial inclusion, by showing state-of-the-art research and limiting bias (J​e​b​a​r​a​j​a​k​i​r​t​h​y​ ​e​t​ ​a​l​.​,​ ​2​0​2​1; T​r​a​n​f​i​e​l​d​ ​e​t​ ​a​l​.​,​ ​2​0​0​3). Similarly, such a combination helps comprehend the existing knowledge level, identify underexplored areas, and synthesize findings (L​i​ ​e​t​ ​a​l​.​,​ ​2​0​1​7). Meanwhile, bibliometric analysis complements the study by providing quantitative insights into the literature's trends, patterns, and citation networks and corroborating qualitative insights from the systematic review process. Hence, it strengthens the credibility and reliability of the research findings that offer a more holistic understanding of the concept landscape, such as financial inclusion. Thus, this study is set to examine the evolution of research on financial inclusion during the time frame 2004 to July 2023 by addressing the four (4) research questions that define the extent of the study:

RQ1. “What are the current trends in research publications on financial inclusion?”

RQ2. “Who are the significant contributors (authors, publication outlets, and institutions) in financial inclusion?”

RQ3. “What are the most critical topics and central themes investigated in financial inclusion research by various scholars?”

RQ4. “What are the research gaps and avenues for further research in this domain of financial inclusion?”

This paper has four significant portions: The procedures used for data collection and analysis are described in Section 2. The study's results are shown in Section 3, along with a discussion based on different parameters. Then, the findings are summed up in Section 4, noting any limitations and offering ideas for future study directions.

2. Research Methodology

2.1 Search Strategy

This study selected purposively Scopus database for searching and extraction of research materials. Scopus is a multidisciplinary bibliographic database that covers extensive peer-reviewed literature, including journals, making it one of the most extensive databases for abstracts and citations (E​l​s​e​v​i​e​r​,​ ​2​0​2​4). Similarly, Scopus facilitates cross-disciplinary research by covering a range of fields, including the social sciences, which makes it a valuable tool for collaborative and interdisciplinary projects (B​u​r​n​h​a​m​,​ ​2​0​0​6). Also, Scopus offers an integrated search option in its database based on curated metadata to find pertinent publications (C​a​s​a​l​-​O​t​e​r​o​ ​e​t​ ​a​l​.​,​ ​2​0​2​3). Therefore, this literature evaluation has made use of the Scopus database, given that the same has been applied by previous scholars (C​a​s​a​l​-​O​t​e​r​o​ ​e​t​ ​a​l​.​,​ ​2​0​2​3; K​a​u​r​ ​e​t​ ​a​l​.​,​ ​2​0​2​1).

2.2 Search Delimiting Criteria

The study employed “keywords” to perform the first search in the Scopus database on July 28, 2023. Before data collection, the “Preferred Reporting Items for Systematic Reviews and Meta-Analysis” (PRISMA) structure was considered (M​o​h​e​r​ ​e​t​ ​a​l​.​,​ ​2​0​0​9). The framework is widely adopted because it provides a flow diagram that indicates each stage involved in gathering data, from the identification of studies to their inclusion and exclusion, which ensures transparency, rigor, and replicability in supporting the systematic extraction and synthesis of research data (M​o​h​e​r​ ​e​t​ ​a​l​.​,​ ​2​0​0​9). Thus, in obtaining the required data from Scopus, we used the keyword “financial inclusion” to search for the “TITLE-ABS-KEY.” Thus, for a smooth literature review, all papers employing a particular keyword in the “Title, Abstract, and Keyword” were considered while considering the inclusion and exclusion criteria (S​w​a​i​n​ ​e​t​ ​a​l​.​,​ ​2​0​2​3).

2.3 Paper Selection with Inclusion/Exclusion Criteria

According to prior research, pertinent academic papers were selected for this review based on inclusion and exclusion criteria (R​e​d​i​n​e​ ​e​t​ ​a​l​.​,​ ​2​0​2​3) using framework (M​o​h​e​r​ ​e​t​ ​a​l​.​,​ ​2​0​0​9). Then, 8,242 papers were recognized after a preliminary search conducted in the chosen database using the keywords indicated in the search delimiting criteria section of this manuscript. After identification, 1,839 articles were removed due to duplicates and different areas of study. Duplicates are records downloaded multiple times from the same database and were excluded from the list (J​e​b​a​r​a​j​a​k​i​r​t​h​y​ ​e​t​ ​a​l​.​,​ ​2​0​2​1). Also, we restricted the study to “social sciences,” “economics, econometrics, and finance,” and “business, management, and accounting” studies only (I​n​g​a​l​e​ ​&​ ​P​a​l​u​r​i​,​ ​2​0​2​2).

Then, the 4,613 papers were removed from further screening and eligibility verification of this literature review due to (i) Unmatched keywords (n=2,904), (ii) Not a scholarly article that entails non-academic sources (for instance, books, book chapters and trade journals) (n=1,484), (iii) Not relevance to financial inclusion (n=225), and (iv) Non-English language published papers (n=06). After that, 1,784 of the remaining publications were selected and disseminated in CSV format to attain the goals of this study. So, Figure 1 displays the actions performed for the entire process, from article searches to inclusion and exclusion procedures. The 1,784 academic papers focused on financial inclusion published since inception in the Scopus database (2004 to July 2023) were analyzed in VOSviewer software and Excel. Therefore, the subsequent section discloses the results in charts, graphs, tables, and network maps based on the analyzed parameters.

Figure 1. The PRISMA structure
Source: Adopted and modified from M​o​h​e​r​ ​e​t​ ​a​l​.​ ​(​2​0​0​9​)

3. Results and Discussion

3.1 Global Growth Trend of Financial Inclusion Research

Organizing the papers based on their publication years is the first step undertaken in carrying out this review of the literature and retorting to the first research question of this study. It is easier to comprehend how academic research in a particular domain of financial inclusion has evolved by looking at the period-based distribution of the papers that have been published in that arena (J​e​b​a​r​a​j​a​k​i​r​t​h​y​ ​e​t​ ​a​l​.​,​ ​2​0​2​1; R​e​d​i​n​e​ ​e​t​ ​a​l​.​,​ ​2​0​2​3). Thus, the first pertinent academic article for this study of financial inclusion was initially discovered in 2004 (V​a​l​v​e​r​d​e​ ​&​ ​F​e​r​n​á​n​d​e​z​,​ ​2​0​0​4). Hence, 2004 is the beginning year for a detailed analysis of the literature on financial inclusion. Research papers released between 2004 and July 2023 amounting to 1,784 publications are therefore included in this review. Figure 2 shows the year-by-year evolution of the included financial inclusion research articles during the observed timeframe. Financial inclusion research emerged over 18 years ago. However, the literature on the subject was still somewhat limited for a while, with just a few papers published between 2004 and 2011 (an average of two publications per year), amounting to 17 publications (0.95%).

Figure 2. Growth trend of financial inclusion research, n =1,784 (2004-2023)

There was a noticeable increase in publications from 2012 to 2017, with 388 papers (21.7%) indicating a rise in scholarly curiosity. Likewise, between 2018 and 2023, a noticeable sharp progressive growth in publications was observed, of which 1379 published articles (77.3%) were found. The year 2022 had the most publications in the field, with a total of 473 papers (26.5%) of all articles generated during the study period (timeframe), as illustrated in Figure 2. Inclusively, the financial inclusion literature's consistent exponential expansion shows that there are more research streams accessible in this field (R​e​d​i​n​e​ ​e​t​ ​a​l​.​,​ ​2​0​2​3). The study of C​h​h​a​t​o​i​ ​e​t​ ​a​l​.​ ​(​2​0​2​1​) reported a similar trend, whereby, despite having a different time span, the exponential growth of published articles was witnessed after 2014.

Moreover, the growing number of publications is primarily attributed to the field gaining significant momentum globally, as reflected by the keyword "financial inclusion" appearing 837 times (40.42%) (see Table 2), underscoring its positive impact on economic growth and development (M​o​s​s​i​e​,​ ​2​0​2​2). The availability of digital technologies such as mobile money platforms, fintech services, and blockchain technologies, which contributed significantly to the rise in financial access (A​n​a​k​p​o​ ​e​t​ ​a​l​.​,​ ​2​0​2​3), and reducing poverty and inequality; women empowerment; and entrepreneurship growth (M​o​s​s​i​e​,​ ​2​0​2​2). Therefore, given the field's significance to the economy and its contribution to the digital economy era in particular, the inquisitiveness of researchers and practitioners should not cease.

3.2 The Contributors in the Domain of Financial Inclusion

In this section, we present the significant contributors in the domain of financial inclusion. Focusing on significant contributors provides more insights into this topic of interest and can let scholars and other practitioners know which authors, publication outlets, and institutions are the most influential and productive to the financial inclusion knowledge base. Similarly, determining the possible sources of fresh insights and investigations can propel the field forward and be helpful.

Table 2. Author’s keywords growth trend

R

Keyword

Occ

%G

R

Keyword

Occ

%G

2004-2023

2004-2015

1

Financial inclusion

837

40.42

1

Financial inclusion

47

27.98

2

Economic growth

329

15.89

2

Financial institutions

17

10.12

3

Financial development

261

12.6

3

Economic growth

15

8.93

11

Digital financial inclusion

90

4.35

11

Financial development

13

7.74

5

Financial institutions

71

3.43

5

Microfinance

13

7.74

6

Poverty reduction

68

3.28

6

Financial exclusion

11

6.55

7

Financial literacy

63

3.04

7

Poverty reduction

10

5.95

8

Fintech

60

2.9

8

Mobile money

7

4.17

9

Microfinance

58

2.8

9

Mobile banking

6

3.57

4

Mobile money

56

2.7

4

Remittances

5

2.98

14

Technological innovation

44

2.12

14

Financial capability

5

2.98

12

Remittances

42

2.03

12

Savings

5

2.98

10

Financial exclusion

36

1.74

10

Financial literacy

5

2.98

13

ICT

35

1.7

13

Financial deepening

5

2.98

15

Digital economy

21

1.01

15

ICT

4

2.38

2016-2019

2020-2023

1

Financial inclusion

117

41.64

1

Financial inclusion

673

42.57

2

Financial development

32

11.39

2

Economic growth

269

16.21

3

Economic growth

30

10.68

3

Financial development

212

12.78

11

Microfinance

24

8.54

11

Digital financial inclusion

119

7.17

5

Financial institutions

19

6.76

5

Fintech

56

3.38

6

Mobile money

11

3.91

6

Poverty reduction

54

3.25

7

Poverty reduction

9

3.2

7

Financial literacy

51

3.07

8

Financial literacy

7

2.49

8

Mobile money

42

2.53

9

ICT

7

2.49

9

Income inequality

35

2.11

4

Savings

6

2.14

4

Remittances

32

1.93

14

Financial innovation

5

1.78

14

Microfinance

29

1.75

12

Financial exclusion

5

1.78

12

ICT

24

1.45

10

Branchless banking

3

1.07

10

Technological innovation

22

1.33

13

Fintech

3

1.07

13

Digital economy

21

1.27

15

Income inequality

3

1.07

15

Financial institutions

20

1.21

Note: R: Rank order; G = growth of the occurrence of the keywords. Source: Authors.
3.2.1 Authorship analysis

Table 3 displays the twenty most-cited articles on financial inclusion between 2004 and 2023, in line with other systematic and bibliometric reviews of literature papers (H​a​l​l​i​n​g​e​r​ ​&​ ​N​g​u​y​e​n​,​ ​2​0​2​0). More interestingly, a publication's effect is determined by the number of citations it receives, which makes it possible to identify the most essential works in a given field of study (D​o​n​t​h​u​ ​e​t​ ​a​l​.​,​ ​2​0​2​1). As a result, the articles by Ozili, P. have received the most citations, 553. Ozili is an influential author who gained inspiration through writing on issues related to “financial inclusion,” “financial economics,” “financial regulations,” “capital markets,” and “empirical banking and financial reporting”.

The other well-known authors include Gupta S., Gabor D., Tchamyou V., Usman M.; Kim D. W.; Jahanger A.; Tchamyou V. S. and Sassi S.; articles with 336, 300, 297, 248, 243, 233, 220, 211, and 202 citations, respectively, as enumerated in Table 3. The work by Gupta S., which receives 336 citations per publication(s) on average, is at the top of the list, followed by Gabor D.; Tchamyou V., Usman M.; Kim D. W.; Jahanger A., Tchamyou V. S. and Sassi S., whose article receives 300, 297, 248, 243, 233, 220, 211, and 202 citations per publications, respectively. The articles by Ozili P. may be considered the most significant study of research on financial inclusion when considering the number of citations based on the accumulation of the produced publications, while on citations per publication(s), the paper by Gupta, S. is leading.

3.2.2 Analysis of publication outlets

Analysis of publication outlets refers to systematically evaluating various platforms, such as journals where research or scholarly work can be published. This analysis assists researchers and academics in identifying the most appropriate outlets for their work based on factors such as the scope of the outlet, accessibility, and peer-review procedures. As a result, this study synthesized the papers based on the journals—that is, the outlets that published the papers on financial inclusion—that is, the journal of publication (J​e​b​a​r​a​j​a​k​i​r​t​h​y​ ​e​t​ ​a​l​.​,​ ​2​0​2​1). As demonstrated in Figure 3, the 1,784 financial inclusion papers were disseminated across 508 top-notch academic sources in the Scopus database. Additionally, among others, the top twenty journals with the highest contribution rate accounted for 657 publications, and they contributed to more than 36% of the total publications, as exemplified in Figure 3, where each source produced more than ten papers. K​u​m​a​r​ ​e​t​ ​a​l​.​ ​(​2​0​1​9​) posit that the productivity of the journal is measured through publication counts, while citations measure the journal's influence. Hence, the notable most fruitful source was the Journal of Sustainability (Switzerland), with 173 articles reporting more than 9% of the whole research on the domain. They were followed by Resources Policy, Economic Research Journal, International Journal of Economics, and Cogent Economics and Finance, among others. The rest of the productive journals are shown in Figure 3.

Table 3. The rank order of the top 20 widely cited authors in financial inclusion, 2004-2023

R

Author(s)

Country

Institutions/Affiliation

NP

TC

C/P

1

Ozili, P. K.

United Kingdom

University of Essex

6

553

92.17

2

Gupta, S.

United States

IMF

1

336

336

3

Gabor, D.

United Kingdom

University of the West of England

1

300

300

4

Tchamyou, V. S. & Erreygers, G.

Belgium

University of Antwerp

1

297

297

5

Usman, M.

Pakistan

Government College University, Faisalabad

1

248

248

6

Kim, D. W.

South Korea

Dankook University

1

243

243

7

Jahanger, A.

China

Hainan University, Haikou

1

233

233

8

Tchamyou, V. S.

Belgium

University of Antwerp

1

220

220

9

Le, T. H.

Vietnam

Fulbright University

1

211

211

10

Sassi, S.

Tunisia

IHEC Carthage

1

202

202

11

Chibba, M.

Canada

International Centre for Development Effectiveness and Poverty Reduction

1

199

199

12

Fungáčová, Z.

Finland

Bank of Finland, Institute for Economies in Transition (BOFIT)

1

197

197

13

Swamy, V.

India

LLC “Consulting Publishing Company-Business Perspectives”

2

184

92

14

Schuetz, S.

United States

University of Arkansas

1

181

181

15

Grohmann, A.

German

German Institute for Economic Research (DIW Berlin)

1

180

180

16

Ahamed, M.

United Kingdom

University of Sussex

1

179

179

17

Klapper, L.

United States

World Bank

1

170

170

18

Qin, L.

China

Shenyang Agricultural University

1

155

155

19

Tchamyou, V. S. & Asongu, S. A.

Belgium

University of Antwerp

1

154

154

20

Myovella, G.

Turkey

Edge University

1

153

153

Note: R: Rank order; NP: Number of publication(s); TC: Total Scopus citations; C/P: Citations per publication(s).
Figure 3. Funnel chart showing the top 20 most productive sources, 2004-2023 (n=1,784)
Table 4. The top 20 most productive institutions/affiliations, 2004-2023

R

Institutions/Affiliations

Country

NP

TC

1

University of International Business and Economics Beijing

China

10

190

2

Beijing Institute of Technology, Beijing

China

8

187

3

Nanchang University, Nanchang

China

7

140

4

University of Lahore, Lahore

Pakistan

5

126

5

Network for Socio-economic Research and Advancement (Nesra), Accra

Ghana

5

272

6

North South University, Dhaka

Bangladesh

5

273

7

Trent University, Peterborough

Canada

4

136

8

China Medical University, Taichung

Taiwan

4

240

9

University of Cape Town, Cape Town

South Africa

4

113

10

Nisantasi University, Istanbul

Turkey

4

135

11

Makerere University Business School, Kampala

Uganda

4

134

12

Quaid-I-Azam University, Islamabad

Pakistan

4

118

13

University of International Business and Economics, Beijing

China

4

157

14

Centre for Economic Policy Research (CEPR), London

United Kingdom

3

239

15

Government College University, Faisalabad

Pakistan

3

315

16

University of Agriculture, Faisalabad

Pakistan

3

315

17

University of Hyderabad, Hyderabad

India

3

114

18

University of New England, Armidale

Australia

3

264

19

Indian Institute of Technology, Kharagpur

India

3

136

20

World Bank

United States

3

185

3.2.3 Institutions/affiliations analysis

The primary production and effect indicators of the institutions/affiliations that have published the most on the contribution of the financial inclusion research are indicated in Table 4. The individual organizations in a given country are represented by the list in Table 4. A total of 3,692 institutions/affiliations participated in the study; 116 satisfied the requirements by obtaining more than 100 citations. Out of all publications, the top twenty organizations have published 89, representing 5.0% of the total. One could argue—as demonstrated in the study by K​u​m​a​r​ ​e​t​ ​a​l​.​ ​(​2​0​1​9​)—that organizations with the highest number of publications do not necessarily have the most citations. Similarly, the top-ranked institution/affiliation with the most publications—ten—was the “University of International Business and Economics” in “Beijing,” “China.” Followed by eight publications from the “Beijing Institute of Technology in Beijing,” “China;” seven publications from Nanchang University in Nanchang, China; five publications from the University of Lahore in Lahore, Pakistan; five publications from the Network for Socio-economic Research and Advancement (Nesra) in Accra, Ghana; and five publications from North South University in Dhaka, Bangladesh. More surprisingly, Chinese universities—especially those in Beijing, the country's capital city—ranked top among contributors in publications (29) articles.

3.3 Author's Keyword Co-Occurrence Analysis

The co-occurrence analysis of the keywords entails the analysis that enables visualization of the evolution of research in a specific domain through mapping of the relationships between the author's keywords (P​u​n​j​a​n​i​ ​e​t​ ​a​l​.​,​ ​2​0​2​3). Similarly, the keyword co-occurrence analysis technique can determine the scientific knowledge structure by determining the frequency of occurrence of particular scientific keywords in a collection of articles and displaying the results as a network map (B​a​s​h​a​r​ ​e​t​ ​a​l​.​,​ ​2​0​2​2). In light of this, to achieve objective three of this study, we employed the authors' keywords to study the critical topics and central themes in financial inclusion. Furthermore, K​u​m​a​r​ ​e​t​ ​a​l​.​ ​(​2​0​1​9​) added that the co-occurrence of the author's keyword may indicate shared research themes among the articles, representing an emerging field of study. Also, the author's keywords provide an opportunity to understand the present research and direct future needs from the literature-identified potential gaps.

Likewise, based on the publication dates of the articles, we created a historical "network map" using the VOSviewer software; the same approach has been applied by previous researchers, such as (B​a​s​h​a​r​ ​e​t​ ​a​l​.​,​ ​2​0​2​2; K​u​m​a​r​ ​e​t​ ​a​l​.​,​ ​2​0​1​9). To achieve better results and visibility, keyword occurrences were kept at 5 minimum as applied by previous scholars (B​a​s​h​a​r​ ​e​t​ ​a​l​.​,​ ​2​0​2​2; B​e​h​e​r​a​ ​&​ ​S​e​t​h​i​,​ ​2​0​2​4). Hence, the keywords that co-occurred five times or more in 1,784 publications were located. Out of 3525 total keywords, 167 meet the threshold requirements, as illustrated in Figure 4, with 561 links and a total link strength of 1656. This analysis of the author’s keywords in “chronological order” looks at how the keywords are dispersed according to when the articles were published (P​r​i​y​a​n​ ​e​t​ ​a​l​.​,​ ​2​0​2​2). Similarly, the keywords co-occurrence network map, Figure 4 affirmed that “financial inclusion” is the central theme found in this study. This theme is almost linked to all other keywords, as displayed in Figure 4, with the highest occurrences of 837 times. The rest of the top keywords that co-occurred the most are “economic growth” (329), “financial development” (261), “digital financial inclusion” (90), “financial institutions” (71), “poverty reduction” (68), “financial literacy” (63), “Fintech” (60), “microfinance” (58), “mobile money” (56), “technological innovation” (44), “financial exclusion” (36), “information and telecommunication technology” (ICT, 35), and “digital economy” (21).

Figure 4. Network map of author's keywords co-occurrence, 2004-2023 (5 thresholds, 167 keywords displayed)

The centrality of financial inclusion keywords rationalizes that financial inclusion enhances the sustainable provision of affordable financial services to people, bringing underserved populations into the formal economy and improving banking system stability (O​z​i​l​i​,​ ​2​0​1​8). Moreover, financial inclusion has a profound and multifaceted impact on society through expanding the financial system's user base, which helps stimulate economic activities to enhance economic growth, reduce poverty, empower people to get more engaged in economic opportunities, and reduce income inequalities for better social stability (G​r​o​h​m​a​n​n​ ​e​t​ ​a​l​.​,​ ​2​0​1​8; K​l​a​p​p​e​r​ ​e​t​ ​a​l​.​,​ ​2​0​1​6).

Further analysis was carried out by dividing the study timeframe (2004-2023) into three segments to ascertain the growth trends of the keywords in total and to observe how specific themes have emerged over time: the I segment covers the timeframe (2004-2015), the II segment (2016-2019), and the III and the last segment (2020-2023) (Table 2). The timeframe for the I segment was more than twice that of the II and III segments due to the handful of papers published during that period.

During the I segment, the growth trend of the keywords was covered in the timeframe (2004-2015) (Table 2), which revealed that the total keywords in that segment under study were 168. The study confirmed that “financial inclusion” is the leading keyword in segment I, contributing to nearly 28% of all related terms (Table 2). In this essence, “financial inclusion” is considered the key driver of sustainable development and social progress, helping to build a more equitable and resilient society, particularly in developing economies (M​i​s​h​r​a​ ​e​t​ ​a​l​.​,​ ​2​0​2​4; Y​a​p​ ​e​t​ ​a​l​.​,​ ​2​0​2​3). Also, M​i​s​h​r​a​ ​e​t​ ​a​l​.​ ​(​2​0​2​4​) added that financial inclusion is a significant force behind financial well-being and economic growth. Likewise, following the close linkage between the financial inclusion keyword and other keywords is that “financial institutions” act as a financial intermediary between the surplus side of the economy and the deficit side by bridging the gap between individuals and the financial system while fostering economic empowerment and stability (B​a​b​a​j​i​d​e​ ​e​t​ ​a​l​.​,​ ​2​0​1​5; B​a​b​a​j​i​d​e​ ​e​t​ ​a​l​.​,​ ​2​0​2​0), revealed to have contributed to more than 10% (Table 2). Similarly, “economic growth” has contributed nearly 9%, “financial development” has contributed 8%, and “microfinance” has contributed 8%. The rest of the top fifteen keywords, which fall under segment I (2004-2015), and their growth frequency are illustrated in Table 2.

Subsequently, the growth trend of the keywords was covered in the II segment over the timeframe (2016-2019) (Table 2), which revealed that the total number of keywords in that segment under study was 281. Compared to the I-segment keywords, the II-segment indicated a progressive upsurge of the keywords of financial inclusion due to the rise of scholarly curiosity in publishing in this field. The study showed that “financial inclusion” is the leading keyword in segment II and conquered the segment by making a more outstanding contribution than 41% of all the financial inclusion-related terms (Table 2). Moreover, “financial development” is the next leading keyword in segment II, contributing more than 11%. They were followed by “economic growth” with a growth rate of more than 10%, “microfinance” at 8.54%, and “financial institutions” at 6.76%, as depicted in Table 2. The rest of the top fifteen keywords, which fall under segment II (2016-2019), and their growth frequency are displayed in Table 2. Also, in comparing the II segment under the timeframe (2016-2019) with the prior segment under the timeframe (2004-2015), it has been witnessed that the appearance of new keywords occurred for the first time, including “Fintech,” “branchless banking,” “financial innovation,” and “income inequality.” Thus, these new keywords deserve to be recommended for further investigation.

Furthermore, the III-segment and the last segment covered the keywords under the timeframe (2020-2023) (Table 2). The finding shows that this was an incredible timeframe since the number of publications increased exponentially, leading to total keywords reaching 1659 (Table 2). It has been noticed further that the term “financial inclusion” has helped people escape from poverty and connect them to financial prospects with official financial services, including those that may be accessed over technological platforms such as mobile phones (M​i​s​h​r​a​ ​e​t​ ​a​l​.​,​ ​2​0​2​4), conquering the period again by making a more outstanding contribution than 40% of the related financial inclusion terms. Curiously, “economic growth” is the next most important keyword, contributing above 16% of the keywords connected to financial inclusion. Among others, “financial development” contributed more than 12%, “digital financial inclusion” contributed more than 7%, and “Fintech” made a more outstanding contribution than 3% of all the keywords, as demonstrated in Table 2. The top fifteen keywords, which fall under segment III (2020-2023), and their growth frequencies are displayed in Table 2. Likewise, in comparing the III segment under the timeframe (2020-2023) with the prior II segments under the timeframe (2016-2019), which discovered the first appearance of new keywords, including “digital economy,” “technological innovation,” “remittances,” and “digital financial inclusion”.

Moreover, as established in Table 2, the entire growth trends of the author’s keywords (2004-2023) and its three segments with different timeframes portrayed that some of the keywords under investigation revealed the existence of positive growth trends of the keywords connected to “financial inclusion,” “financial development,” and “economic growth.” However, a number of keywords revealed a fluctuating growth trend, such as “microfinance,” ‘financial literacy,” “ICT,” and “poverty reduction.” Although the keywords “financial deepening,” “financial capability,” and “mobile banking” are used, their growth trend is less known (Table 2). Also, the last segment (2020-2023) indicated that the concentration of most of the keywords had been studied in this timeframe, and most of them show a tendency to decrease in frequency (Table 2). Thus, given the outstanding contribution of this vital theme of study to individual households and the economy, researchers and practitioners are strongly encouraged to continue this line of inquiry, given that many people, especially in nations with poor and medium incomes, are still in the dark.

4. Conclusion, Limitations, and Future Research Avenues

4.1 Conclusion

This study presented a detailed analysis of publications on financial inclusion from 2004 to July 2023. The study used the Scopus database, and 1,784 obtained publications were reviewed. The study was completed through various quantitative and qualitative analyses that rely on computational tools and software that enable involvement in the ongoing scholarly information flow linked to financial inclusion. The VOSviewer software and Excel participated in knowledge generation throughout the period.

According to the study findings, the first financial inclusion-related document appeared in the Scopus database in 2004. Also, it has been noted that the progressive growth of publications on financial inclusion peaked in 2022, with 473 (26.5%) of all articles published during the timeframe, making the year the most productive. Subsequently, O​z​i​l​i​ ​(​2​0​1​8​) became the leading author on financial inclusion, receiving 553 citations overall from the contribution of 6 articles. In addition, the paper authored by O​z​i​l​i​ ​(​2​0​1​8​) emerged as an influential document in financial inclusion, leading by 446 citations. Much less, the Journal of Sustainability (Switzerland) dedicated itself to becoming the top journal in disseminating financial inclusion research, and it has published 173 articles. Moreover, the “University of International Business and Economics of Beijing,” China, is revealed as a highly productive institution with the contribution of 10 publications. The study has identified the popular and central themes that scholars have given the most incredible attention to, along with financial inclusion. Also, new themes emerge, such as “Fintech,” “branchless banking,” “financial innovation,” “income inequality,” “digital economy,” “technological innovation,” “remittances,” “digital financial inclusion,” “financial capability,” and “financial deepening,” that require further investigation.

4.2 Limitations of the Study and Avenues for Further Studies

Identifying the limitations of the current research is crucial in proposing the scope for further studies. Therefore, this section highlighted the limitations pertaining to this study, organized systematically into themes, and proposed avenues for future improvement as follows:

4.2.1 Relying on a single database

This study is based mainly on the papers extracted from Scopus database. Therefore, several other databases, including WoS, ProQuest, EBSCOhost, and ABI, were not analyzed while holding essential publications along with Scopus. Thus, future studies could focus on more than one database in single research for complete data and more new detections.

4.2.2 Excluding non-English publications

This review work was limited to only English language publications, and non-English articles were excluded from the current study. Therefore, future studies should consider multilingual publications to promote inclusivity and minimize language biases for impactful research findings.

4.2.3 Peer-reviewed journal articles

The current study involved only “peer-reviewed journal articles.” However, book chapters, national journals, and conference proceedings may all have a similar influence but are not included in the search conditions. Hence, future research may consist of conference proceedings, book chapters, national journals, and journal articles to guarantee a more thorough and nuanced grasp of the scholarly landscape within financial inclusion.

4.2.4 Data search

The data search for the current study was done only once, i.e., July 28, 2023; the study might change at any time if later literature is added to the database.

4.2.5 Field of study/Subject areas

The current study has been limited to articles in the fields of “social sciences,” “economics, econometrics, and finance,” and “business, management, and accounting” only. Thus, future studies can incorporate more fields to provide a broader view of a topic and make it more insightful for diverse stakeholders.

4.2.6 New emerging themes

New and hot themes emerged during data analysis, such as “Fintech,” “branchless banking,” “financial innovation,” “income inequality,” “digital economy,” “technological innovation,” “Remittances,” “digital financial inclusion,” “financial capability,” and “financial deepening.” Henceforth, future studies may consider accommodating these themes by incorporating two or more than two themes in a single research to broaden the study horizon.

4.2.7 TCCM framework

Future studies on the same topic should consider utilizing the Theory, Context, Characteristics, and Methodology (TCCM) background in systematic research to provide a structured, in-depth review and a clear foundation for filling the gaps.

5. Practical Implications

This review of the literature paper keeps the following practical implications for various stakeholders, such as financial institutions, academicians and researchers, and policymakers as follows:

5.1 Financial Institutions

This study’s outcomes can be utilized by financial institutions to create products and services that better cater to the necessities of underserved groups as well as to direct the formation of inclusive financial products like microfinance schemes, smartphone banking apps, and innovative lending models.

5.2 Researchers and Academicians

To academicians and researchers, this review work can act as a springboard for more scholarly studies by pointing out the underexplored areas in the literature and recommending additional research. Also, researchers can expand the current body of knowledge to explore emerging trends or carry out cross-national comparisons.

5.3 Policymakers

The results of this study can give policymakers a thorough grasp of the body of research, enabling them to create more effective laws and regulations that support financial inclusion. Additionally, policymakers can customize interventions for specific target populations by identifying gaps and best practices.

Data Availability

The data used to support the research findings are available from the corresponding author upon request.

Conflicts of Interest

The authors declare no conflict of interest.

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Kundy, V. P. & Shah, K. (2024). Evolution and Trends in Financial Inclusion Research: A Systematic Literature Review and Bibliometric Analysis (2004–2023). J. Account. Fin. Audit. Stud., 10(4), 179-192. https://doi.org/10.56578/jafas100401
V. P. Kundy and K. Shah, "Evolution and Trends in Financial Inclusion Research: A Systematic Literature Review and Bibliometric Analysis (2004–2023)," J. Account. Fin. Audit. Stud., vol. 10, no. 4, pp. 179-192, 2024. https://doi.org/10.56578/jafas100401
@review-article{Kundy2024EvolutionAT,
title={Evolution and Trends in Financial Inclusion Research: A Systematic Literature Review and Bibliometric Analysis (2004–2023)},
author={Veronica Paul Kundy and Kamini Shah},
journal={Journal of Accounting, Finance and Auditing Studies},
year={2024},
page={179-192},
doi={https://doi.org/10.56578/jafas100401}
}
Veronica Paul Kundy, et al. "Evolution and Trends in Financial Inclusion Research: A Systematic Literature Review and Bibliometric Analysis (2004–2023)." Journal of Accounting, Finance and Auditing Studies, v 10, pp 179-192. doi: https://doi.org/10.56578/jafas100401
Veronica Paul Kundy and Kamini Shah. "Evolution and Trends in Financial Inclusion Research: A Systematic Literature Review and Bibliometric Analysis (2004–2023)." Journal of Accounting, Finance and Auditing Studies, 10, (2024): 179-192. doi: https://doi.org/10.56578/jafas100401
KUNDY V P, SHAH K. Evolution and Trends in Financial Inclusion Research: A Systematic Literature Review and Bibliometric Analysis (2004–2023)[J]. Journal of Accounting, Finance and Auditing Studies, 2024, 10(4): 179-192. https://doi.org/10.56578/jafas100401
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