This paper analyzes how the presence of a futures market gives risk averse dealers in the spot asset opportunities for arbitrage that reduces the spot market bid-ask spread through reducing the dealers risk exposure. In particular, if the spot and futures risks are perfectly correlated then the...

Conditioning variables on consumer choices are conventionally included in demand functions additively. We identify the underlying utility maximisation problem. There must be base consumption levels efficiently set which vary with the conditioning variables. A special case is quasi-homothetic...

Generally, two facts occur with strategic complementarities and fixed prices: (i) the equilibria are multiple and (ii) if the complementarities are strong, the law of demand is violated and the equilibrium is unstable. In this paper, we analyse the effect of price flexibility on these features...

The paper argues that many choice situations involve a more complicated constraint structure than the standard linear budget constraint and consumption set. Some abstract examples are outlined and in each case some theoretical properties are derived, for example, of the comparative statics. One...