preliminary version firms financing costs the role of development banks in mexico by fernando aportela september 2001 abstract this paper deals with firm s a receiving credits from bank it also analyzes probability that has to obtain public sector credit using dataset more than 5 800 determinant interest rates are studied results indicate for 4 percentage points lower if obtained its result is robust different econometric techniques and specifications on other hand probit analysis there no strong evidence related size economic activities highly identified located low income mexican states consequently implicit rate subsidy granted not properly directed prepared conference financial markets organized center research policy reform at stanford university october 6 i would like thank