Asymmetry – Resurrecting the Roots
This note attempts to reconcile a range of primary methods for dealing with price asymmetry, such as the approaches proposed by Tweeten and Quance (1969), Wolffram (1971) and Houk(1977). Using Wolffram’s stylized example, we first illustrate that the notion of asymmetry can be captured in a straightforward and highly intuitive manner in terms of first differences. While this asymmetry definition is more readily interpretable than the alternatives proposed by Wolffram and Houk, we demonstrate that, theoretically, these definitions are equivalent. This conclusion also turns out to be true for Wolfframs’s stylized example. Using data on coffee consumption, however, we illustrate that, in practice, these approaches may yield divergent conclusions with respect to asymmetry. We argue that in such situations the asymmetry notion based on first differences should be preferred.
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- Tweeten, Luther G & Quance, C Leroy, 1969. "Positivistic Measures of Aggregate Supply Elasticities: Some New Approaches," American Economic Review, American Economic Association, vol. 59(2), pages 175-83, May.
- Giliola Frey & Matteo Manera, 2007.
"Econometric Models Of Asymmetric Price Transmission,"
Journal of Economic Surveys,
Wiley Blackwell, vol. 21(2), pages 349-415, 04.
- Matteo Manera & Giliola Frey, 2005. "Econometric Models of Asymmetric Price Transmission," Working Papers 2005.100, Fondazione Eni Enrico Mattei.
- Meyer, Jochen & von Cramon-Taubadel, Stephan, 2002.
"Asymmetric Price Transmission: A Survey,"
2002 International Congress, August 28-31, 2002, Zaragoza, Spain
24822, European Association of Agricultural Economists.
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