Development banks are financial institutions that provide capital and technical assistance to developing countries for economic development projects. They are different from commercial banks, which typically provide short-term and medium-term loans, while development banks provide medium- and long-term loans.

A subnational development bank is a financial institution that operates at a level below the national government, typically serving a specific state, province, city, or region within a country. These banks focus on promoting economic development, infrastructure growth, and social welfare within their jurisdiction. They often provide financing for local projects, businesses, and public services, helping to address regional disparities in access to credit and economic opportunities.

Examples of subnational development banks include state development banks in large federations like Brazil or India, or regional development banks within a country that target specific geographical areas.

National development banks are government-owned financial institutions that provide funding and support for domestic projects aimed at promoting economic development and addressing social challenges within a country. They typically finance infrastructure, industrial growth, and sustainable development initiatives, often focusing on sectors underserved by commercial banks.

A regional development bank (RDB) is a multilateral financial institution that provides financial and technical assistance to support economic development, social progress, and infrastructure projects within a specific geographic region. These banks typically serve multiple countries within their designated region, fostering economic integration and reducing poverty by financing public and private sector projects.