Abstract This study provides an overview of experimental methods in economics, with a special focus on developing an economic theory of generalizability. Given that field experiments are in their infancy, our secondary focus pertains to a discussion of the various parameters that they identify, and how they add to scientific knowledge. This chapter concludes that until more field experiments that build a bridge between the lab and the naturally occurring settings of interest can be conducted, empirically strong conclusions cannot be made on the crucial question of generalizability from the lab to the field. This chapter also responds to the discussion presented in this section.
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