This paper investigates whether the country-level financial environment in which microfinance institutions (MFIs) have to work affects their operations. In particular, we argue that the efficiency of MFIs is determined by the extent to which financial markets of countries are developed. On the...

This paper examines the influence of misspecification in stochastic frontier analysis (SFA) models. It explores the impact of misspecification on frontier and efficiency estimates as well as efficiency scores. Using a simulation approach with several data generating processes the general...

This paper surveys 50 years of empirical research on the macroeconomic impact of aid, looking mainly at studies examining the link between aid and growth. It argues that studies dating until the late 1990s produced either contradictory or inconclusive results. Aid either worked, or it didn’t,...