Applying Growth Theory across Countries

The potential problem of reverse causality has been obvious to everyone. It has usually been met with the standard econometric dodge: using lagged values of slow-moving variables as instruments. But this cannot be a serious solution to the problem....

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Bibliographic Details
Main Author: Solow, Robert M.
Format: Journal Article
Language:English
en_US
Published: Washington, DC: World Bank 2014
Subjects:
Online Access:http://documents.worldbank.org/curated/en/2001/05/17737093/applying-growth-theory-across-countries-learned-decade-empirical-research-growth
http://hdl.handle.net/10986/17444
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Summary:The potential problem of reverse causality has been obvious to everyone. It has usually been met with the standard econometric dodge: using lagged values of slow-moving variables as instruments. But this cannot be a serious solution to the problem. The causality issue points to a deeper question: Do cross-country regressions define a meaningful surface along which countries can move back and forth at will? If this is the idea, what mechanism could underlie such a surface? Brock and Durlauf call such a regression a 'model.' Reader suppose in a statistical sense it is. But an economic model should have some internal structure; its causal arrows should rest on some sort of behavioral mechanism, and that seems to be missing in this literature.