The density function of product life cycles in convenience stores is found to follow the Weibull distribution. To clarify the parameters that determine these life cycles, we introduce the conditional market share—defined as the probability that a product is selected by customers only if it had been previously purchased—and the market share without any conditions. The product life cycle is more ...

This paper investigates the cointegrating and long-term causal relationships between the Shanghai A and Bshare market, and between these two markets and the Hong Kong, the Taiwanese, the Japanese and the US market of two sub periods between July 1993 and March 2007. On the basis of a new Granger non-causality test procedure developed by Toda-Yamamoto (1995) and Johansen’s (1988) cointegration t...