Considering the role of financial institutions to allocate financial resources to a scarcity, the banking business has played an important role in providing loans and credit for last twenty-five years. The proportion of loans and credits which is provided by the banking business is 76.5 percent of all loans and credits (Pornsugsawang, 2010: 48). However, a study of Tanapornparn (2000: 392) revealed that the financial resources allocated to any projects gain a high private rate of return, whereas financial resources are hardly allocated to the agricultural sector; i.e. from annual reports in 2009, the Bangkok bank provided only 2.4 percent of loans for the agricultural and