This paper derives a three stage Cournotoligopoly game for product innovation, expenditure on introducing the product and competition on the product market. Product innovation is assumed to increase consumer utility but is effective only if the innovating firm invests in marketing, so that...

We offer a new explanation for why taxes have become less redistributive in many countries in parallel with an increase in income concentration. When performance-based contracts are needed to incentivize effort, redistribution through progressive income taxes becomes less precisely targeted....

A framework which allows for the joint testing of the adaptive and rational expectations hypotheses is presented. We assume joint normality of expectations, realizations and variables in the information set, allowing for parsimonious interpretation of the data; conditional first moments are...