On average, respondents who give a positive answer to a binary free choice attitude question are NOT more likely, if surveyed again, to respond positively than to response negatively. However, stronger brands obtain more repeated positive answers. Our model shows why these two effects have to...

Consumers are different in their purchase rates and it is important to determine this heterogeneity. If a consumer's purchases follow a Poisson process (hence exponential interpurchase time), and purchase rates are distributed gamma across consumers, then a simple measure of heterogeneity is the...

In Raju, Dhar, and Morrison (1994), a paper that appeared earlier in this journal, we developed an analytical model and conducted empirical analyses to examine the effect of package coupons on market share. In this epilogue, we extend the analytical framework in our earlier paper to study the...