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Article Information Comments 0 Abstract In the last few years, field experiments have emerged as an attractive new tool in the effort to elaborate our understanding of economic issues relevant to poor countries and poor people. By enabling the researcher to precisely control the variation in the data, field experiments allow the estimation of parameters and testing of hypotheses that would be very difficult to implement with observational data.

The results of this body of empirical work, in turn, have pushed theory in new directions. Much of this paper illustrates the power of this interplay between experimental and theoretical thinking. Frische, S. Nature , Karani, R. Article Google Scholar. Rodrigo, C. Scientometrics 88 , — Cleary, M. Einav, L. Matheson, A. PLoS Med. BMC Med. Hames, I. Download references. You can also search for this author in PubMed Google Scholar.

Correspondence to Liz Allen. Global mobility: Science mapped out Oct It is time for full disclosure of author contributions Sep NPG's policy on authorship Sep Authorship policies Apr Reprints and Permissions. Allen, L. Publishing: Credit where credit is due. Download citation. Published : 16 April Issue Date : 17 April Anyone you share the following link with will be able to read this content:.

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