How can we learn whether firm policies are working in africa ? challenges (and solutions?) for experiments and structural models

David McKenzie

No 5632, Policy Research Working Paper Series from The World Bank

Abstract: Firm productivity is low in African countries, prompting governments to try a number of active policies to improve it. Yet despite the millions of dollars spent on these policies, we are far from a situation where we know whether many of them are yielding the desired payoffs. This paper establishes some basic facts about the number and heterogeneity of firms in different sub-Saharan African countries and discusses their implications for experimental and structural approaches towards trying to estimate firm policy impacts. It shows that the typical firm program such as a matching grant scheme or business training program involves only 100 to 300 firms, which are often very heterogeneous in terms of employment and sales levels. As a result, standard experimental designs will lack any power to detect reasonable sized treatment impacts, while structural models which assume common production technologies and few missing markets will be ill-suited to capture the key constraints firms face. Nevertheless, the author suggests a way forward which involves focusing on a more homogeneous sub-sample of firms and collecting a lot more data on them than is typically collected.

Keywords: Microfinance; Small Scale Enterprise; E-Business; ICT Policy and Strategies; Banks&Banking Reform (search for similar items in EconPapers)
Date: 2011-04-01
New Economics Papers: this item is included in nep-afr and nep-dev
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (17)

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