Measuring Effective Protection as a Superlative Index Number: An Application to European Agriculture

Jean-Christophe Bureau and Nicholas G. Kalaitzandonakes

American Journal of Agricultural Economics, 1995, vol. 77, issue 2, 279-290

Abstract: In this study duality and the theory of superlative index numbers are used to obtain a theoretically consistent Effective Protection Rate (EPR) index that imposes no a priori restrictions on input-output substitution possibilities. Within this framework, EPRs are estimated for European agriculture over the period 1973 to 1989. The empirical results demonstrate that maintaining zero input/output substitutability—a restriction embedded in all common protection measures—can lead to false results about the level of protection both across countries and time.

Date: 1995
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Persistent link: https://EconPapers.repec.org/RePEc:oup:ajagec:v:77:y:1995:i:2:p:279-290.

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