Two extensions are provided to a model of lumpy investment originally formulated by Srinivasan. The extensions are provided in the context of an electric utility. The first extension shows the effect on optimal cycle time and investment size of constraining an electric utility to carry excess...

The greenhouse effect is intrinsically global. Accordingly, effective responses require global coordination. While limited policies have been adopted, notably for phasing out chlorofluorocarbons, there is no clear consensus as to what to do about other greenhouse gases. In this paper, we survey...