Estimation of empirical relationships is prone to bias. Economists have carefully studied sources of bias in structural and quasi-experimental approaches, but the randomized control trial (RCT) has only begun to receive such scrutiny. This paper argues that several lessons from medicine, derived...

Policy discussions in Japan have increasingly recognized the important role of land values and land-use patterns in Japanese macroeconomic adjustment. In Japan in recent years, land wealth constitutes more than half of financial wealth, a proportion that is much higher than in the United States...

We conducted a survey covering 20% of villages with 200-1000 population in rural Guinea-Bissau. We interviewed household heads, care-givers of children, and their teachers and schools. We analysed results from 9,947 children, aged 7-17, tested for literacy and numeracy competency. Only 27% of...

For the past few years, CEP research associate Peter Boone and his colleagues at Effective Intervention have been running primary school education projects in the rural villages of Andhra Pradesh and Guinea-Bissau. Their initial survey of literacy and numeracy in Guinea-Bissau showed that very...

We conducted a survey covering 20% of villages with 200-1000 population in rural Guinea-Bissau. We interviewed household heads, care-givers of children, and their teachers and schools. We analysed results from 9,947 children, aged 7-17, tested for literacy and numeracy competency. Only 27% of...

Why do over 20% of children die in some poor countries, while in others only 2% die? We examine this question using survey data covering 278,000 children in 45 low-income countries. We find that parents' education and a mother's propensity to seek out modern healthcare are empirically important...

Political regimes and social rules have often served to suppress human rights and freedoms. In this paper I analyze the determinants of oppression when self-interested leaders seek to gain from oppressing a less powerful group. In my framework an oppressive regime is a rational equilibrium...

Critics of foreign aid programs have long argued that poverty reflects government failure. In this paper I analyze the effectiveness of foreign aid programs to gain insights into political regimes in aid recipient countries. My analytical framework shows how three stylized political/economic...

Most former Soviet republics have fallen into an economic and political under-reform trap. An intrusive state imposes high tax rates and drives entrepreneurs into the unofficial economy, which further aggravates the pressure on official businessmen. Tax revenues and public goods dwindle, further...