We consider the stochastic dynamics of constrained systems. It is shown that by expressing the Lagrange multipliers in terms of quantities that are local in time, exact and potentially useful dynamic equations of the Langevin, Fokker-Planck and Smoluchowskii equations are obtained. The equations...

Exact lower bound on the correlation function and susceptibility are obtained in terms of the quantity r∗=r0+(12u/(2π)d)∫ ddl〈ϕlϕ−l〉, where 〈ϕlϕ−l〉 are the exact averages. Further lower bounds are obtained on r∗, relating it to an exactly soluble model.

One of the most important and most contentious issues for regulation and competition raised by the 1996 Telecommunications Act is when to authorize the regional Bell companies to offer long-distance services. The Department of Justice (DOJ) adopted a standard requiring that a Bell's local market...

Inspiriert durch die Beispiele westlicher Staaten sind Technologie-, Gründer- und Innovationszentren (TGZ) auch in mittel- und osteuropäischen (MOE-)Ländern aus dem Spektrum wirtschaftspolitischer Maßnahmen nicht mehr wegzudenken. Die Errichtung von TGZ in MOE-Ländern folgt der generellen...

<DIV>Mintz and Schwartz offer a fascinating tour of the corporate world. Through an intensive study of interlocking corporate directorates, they show that for the first time in American history the loan making and stock purchasing and selling powers are concentrated in the same hands: the leadership...</div>