We study the market for emission allowances stipulated in the 1990 Clean Air Act Amendment. We assume that the number of allowances is fixed and that demand is affected by a stochastic parameter that follows a Wiener process ('Brownian motion'). The optimal investment policy for scrubbers is...

System operators in the electricity industry purchase reserve capacity in a procurement auction in which suppliers offer two-part bids, one part for making capacity available and another part for supplying incremental energy when called. Key ingredients of an efficient auction design are the...