Conventional data envelopment analysis (DEA) methods assume that input and output variables are continuous. However, in many real managerial cases, some inputs and/or outputs can only take integer values. Simply rounding the performance targets to the nearest integers can lead to misleading solutions and efficiency evaluation. Addressing this kind of integer-valued data, the current paper propo...

Since the beginning of 2008 economic crisis, growth and development have been in forefront research. In a global context, highest levels poverty as well malnutrition problems are found sub-Saharan African countries. Social Accounting Matrices (SAMs) useful tools to describe situation these countries, interactions among agents support policymakers implementing their policies. The paper shows mac...