As an empirical regularity for broad commodity groups, we show that price elasticities of demand are scattered around the value of minus one-half. We also show that this finding is not inconsistent with the utility-maximising theory of the consumer under the conditions of preference independence. When nothing is known about the price-sensitivity of a good, a reasonable first approximation to its price elasticity is thus minus one-half.
|Publisher||UWA Business School|
|Publication status||Published - 2006|
|Name||Economics Discussion Papers|