The global financial crisis that emerged in mid-2007 has caused considerable economic disruptions in the United States and elsewhere, and exposed major flaws in the global financial system. After examining the origins of the crisis, this paper recommends specific policy responses to resolve the...

The global financial crisis that emerged in mid 2007 has caused considerable economic disruptions in the United States and elsewhere, and exposed major flaws in the global financial system. After examining the origins of the crisis, this paper recommends specific policy responses to resolve the...

The global financial and economic crisis has struck Iceland with extreme force. Iceland’s three main banks, accounting for almost all of the banking system, failed in October 2008. They were unable to resist the deterioration in global financial markets following the failure of Lehman...

We derive the implications from the absence of arbitrage in dynamic securities markets with bid-ask spreads. The absence of arbitrage is equivalent to the existence of at least an equivalent probability measure that transforms some process between the bid and the ask price processes of traded...

The electricity industry is undergoing a substantial process of restructuring, with an emphasis on the introduction of competition in the generation sector. Traditional planning methods are not necessarily appropriate for this new environment. This paper extends a previously developed linear...

In this paper we consider a family of investment projects defined by their deterministic cash flows. We assume stationarity—that is, projects available today are the same as those available in the past. In this framework, we prove that the absence of arbitrage opportunities is equivalent to...