Measuring Substitution Patterns in Differentiated-Products Industries
Amit Gandhi and
Jean-François Houde
No 26375, NBER Working Papers from National Bureau of Economic Research, Inc
Abstract:
We study the estimation of substitution patterns within the discrete choice framework developed by Berry (1994) and Berry, Levinsohn, and Pakes (1995). Our objective is to demonstrate the consequences of using weak instruments in this non-linear GMM context, and propose a new class of instruments that are designed to avoid weak IV and can be used to estimate a large family of models with aggregate data. We argue that strong instruments should reflect the (exogenous) degree of differentiation of each product in a market (Differentiation IVs), and provide a series of examples to illustrate the performance of simple instrument functions.
JEL-codes: C35 C36 L13 (search for similar items in EconPapers)
Date: 2019-10
New Economics Papers: this item is included in nep-com, nep-dcm, nep-ecm, nep-ind and nep-ore
Note: IO
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Citations: View citations in EconPapers (4)
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