Financial sector development in developing countries and emerging markets is part of the private sector development strategy to stimulate economic growth and reduce poverty. The Financial sector is the set of institutions, instruments, and markets. It also includes the legal and regulatory framework that permit transactions to be made through the extension of credit. Fundamentally, financial sector development concerns overcoming “costs” incurred in the financial system. This process of reducing costs of acquiring information, enforcing contracts, and executing transactions results in the emergence of financial contracts, intermediaries, and markets. Different types and combinations of information, transaction, and enforcement costs in conjunction with different regulatory, legal and tax systems have motivated distinct forms of contracts, intermediaries and markets across countries in different times.