Our context involves N Cournot oligopolists producing M products at constant marginal costs when preferences are quasi-linear. We identify relationships between second moments of unit costs and second moments of firm-level production. For example, a larger variance in unit costs of a product...

A copula is a means of generating an n-variate distribution function from an arbitrary set of n univariate distributions. For the class of portfolio allocators that are risk averse, we use the copula approach to identify a large set of n -variate asset return distributions such that the relative...

Producers are subject to similar production risks, and so their outputs are likely correlated. Using the entire data-set rather than summary statistics, we study an ordinal definition of systematic risk. For risk-neutral producers in perfect competition, we trace the effects of an increase in...