At the heart of many econometric models are a linear function and a normal error. Examples include the classical small-sample linear regression model and the probit, ordered probit, multinomial probit, tobit, interval regression, and truncated-distribution regression models. Because the normal...

We replicate and reanalyse the most influential study of microcredit impacts (M. M. Pitt & S. R. Khandker's, 'The impact of group-based credit on poor households in Bangladesh: Does the gender of participants matter?', published in the Journal of Political Economy, 106, 1998). That study was...

The Burnside and Dollar (2000, AER) finding that aid raises growth in a good policy environment has had an important influence on policy and academic debates. We conduct a data gathering exercise that updates their data from 1970 -93 to 1970 -97, as well as filling in missing data for the...

The recent literature contains many stories of how foreign aid affects economic growth. Aid raises growth in countries with good policies, or with difficult economic environments, or outside the tropics, or on average but with diminishing returns. The diversity of the results suggests that many...

Clemens, Radelet, Bhavnani, and Bazzi (CRBB) argue that the most-cited cross-country studies of the impact of foreign aid can be reconciled if changed in certain ways. The shared finding is then, in the CRBB view, that more aid is followed on average by more growth. I exactly replicate the...