The welcome rise of replication tests in economics has not been accompanied by a single, clear definition of ‘replication’. A discrepant replication, in current usage of the term, can signal anything from an unremarkable disagreement over methods to scientific incompetence or misconduct. This paper proposes an unambiguous definition of replication, one that reflects currently common but unstandardized use. It contrasts this definition with decades of unsuccessful attempts to standardize terminology, and argues that many prominent results described as replication tests should not be described as such. Adopting this definition can improve incentives for researchers, encouraging more and better replication tests.
The New Transparency in Development Economics: Lessons from the Millennium Villages Controversy - Working Paper 342
In this paper, Michael Clemens and Gabriel Demombynes discuss how a new transparency is changing the debate about what works.
The White House and the World: A Global Development Agenda for the Next U.S. President shows how modest changes in U.S. policies could greatly improve the lives of poor people in developing countries, thus fostering greater stability, security, and prosperity globally and at home. Center for Global Development experts offer fresh perspectives and practical advice on trade policy, migration, foreign aid, climate change and more. In an introductory essay, CGD President Nancy Birdsall explains why and how the next U.S. president must lead in the creation of a better, safer world.
Zimbabwe has experienced a precipitous collapse in its economy over the past five years. The government blames its economic problems on external forces and drought. We assess these claims, but find that the economic crisis has cost the government far more in key budget resources than has the donor pullout. We show that low rainfall cannot account for the shock either. This leaves economic misrule as the only plausible cause of Zimbabwe’s economic regression, the decline in welfare, and unnecessary deaths of its children.
The US government's proposed $5 billion Millennium Challenge Account (MCA) could provide upwards of $250-$300m or more per year per country in new development assistance to a small number of poor countries judged to have relatively "good" policies and institutions. Could this assistance be too much of a good thing and strain the absorptive capacity of recipient countries to use the funds effectively? Empirical evidence from the past 40 years of development assistance suggests that in most potential MCA countries, the sheer quantity of MCA money is unlikely to overwhelm the ability of recipients to use it well, if the funds are delivered effectively.