Formal and Informal Finance in Developing Economies

Developing economies often exhibit a dual financial landscape in which regulated banks, microfinance institutions and capital markets coexist with a rich array of informal mechanisms such as rotating savings groups, moneylenders and community‐based lending clubs. Formal finance offers scale, stability and regulatory oversight, yet it can be prohibitively costly and bureaucratic for many small enterprises, particularly in rural and marginalised communities. Informal finance, by contrast, thrives on personal relationships, flexible terms and rapid access, but may carry high implicit costs, variable reliability and limited transparency. Recent research has emphasised the dynamic interplay between these two spheres: informal credit can serve as a bridge to formal services by helping entrepreneurs build credit histories, while formal institutions often learn from informal governance practices to refine risk assessment and delivery models. Contextual factors—ranging from institutional quality and legal infrastructure to social capital and digital connectivity—shape the uptake and performance of both channels. Understanding how households and firms navigate these options is crucial for designing inclusive financial systems that support sustainable growth, reduce vulnerability to shocks and foster broader economic development. Concrete interventions, such as policy frameworks that recognise community savings groups or digital platforms that link informal actors with regulated providers, have shown promise in expanding outreach while preserving local resilience.

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Formal and Informal Finance in Developing Economies publication trend

The graph below shows the total number of articles in formal and informal finance in developing economies across all publications each year (not limited to Nature Index journals).

Technical terms

Formal finance: Financial services provided by regulated entities such as banks, non-bank financial institutions and capital markets, typically governed by law and requiring documentation and collateral.

Informal finance: Unregulated credit and savings arrangements based on personal networks, community groups or individual moneylenders, characterised by flexible terms and reliance on trust rather than formal contracts.

Social capital: The networks, norms and levels of trust within a community or group that facilitate the flow of information, reduce transaction costs and support collective economic action.

Asymmetric information: A condition in which one party in a transaction has more or better information than the other, leading to potential market inefficiencies such as adverse selection and moral hazard.

References

1. Finance, informal competition, and expectations: A firm-level analysis. World Development (2024).
2. Behavioral Patterns That Influence the Financing Choice Models of Small Enterprises in Ecuador through Latent Class Analysis. Sustainability (2023).
3. Constraints to formal small business performance in the service sector in Cameroon. African Journal of Economic and Management Studies (2022).