An equivalent !-martingale measure (E!MM) for a given stochastic process Sis a probability measure R equivalent to the original measure P such that S isan R-!-martingale. Existence of an E!MM is equivalent to a classical absenceof-arbitrage property of S, and is invariant if we replace the...

We solve the problem of mean-variance hedging for general semimartingale modelsvia stochastic control methods. After proving that the value process of theassociated stochastic control problem has a quadratic structure, we characteriseits three coefficient processes as solutions of semimartingale...

The U.S. Bureau of Economic Analysis monthly journal of record presents summary estimates and analyses of U.S. economic activity. It includes articles about the national, regional, and international economic accounts and related topics. It also presents the latest estimates of the national...

KIDS COUNT is a national and state-by-state effort to track the status of children in the U.S. Ten key measures comprise an index of child well-being used to rank states and supplemental data on education, health, and economic conditions for each state. Data from the 2003 KIDS COUNT Data Book...