Suchergebnisse

We develop numerical schemes for solving the isothermal compressible and incompressible equations of fluctuating hydrodynamics on a grid with staggered momenta. We develop a second-order accurate spatial discretization of the diffusive, advective, and stochastic fluxes that satisfies a discrete fluctuation-dissipation balance and construct temporal discretizations that are at least second-order accurate in time deterministically and in a weak sense. Specifically, the methods reproduce the correct equilibrium covariances of the fluctuating fields to the third (compressible) and second (incompressible) orders in the time step, as we verify numerically. We apply our techniques to model recent experimental measurements of giant fluctuations in diffusively mixing fluids in a microgravity environment [A. Vailati et al., Nat. Comm., 2 (2011), 290]. Numerical results for the static spectrum of nonequilibrium concentration fluctuations are in excellent agreement between the compressible and incompressible simulations and in good agreement with experimental results for all measured wavenumbers ; These authors' research was supported by the Spanish government FIS2010-22047-C0S and the Comunidad de Madrid MODELICO-CM (S2009/ESP-1691). This author's research was supported by the DOE Applied Mathematics Program of the DOE Office of Advanced Scientific Computing Research under the U.S. Department of Energy under contract DE-AC02-05CH11231. The fourth author's research was supported by the DOE Applied Mathematics Program of the DOE Office of Advanced Scientific Computing Research under the U.S. Department of Energy under contract DE-AC02-05CH11231 and by the National Science Foundation under grant DMS-1115341. The fifth author's research was supported by the DOE Computational Science Graduate Fellowship under grant DE-FG02-97ER25308. This author's research was supported by the National Science Foundation under awards OCI 1047734 and DMS 1016554.

Dynamic oligopolistic competition has implications both for the strategic management of firms and for the design of an effective competition policy. Consequently, the present book considers the issue from a private and social perspective. It discusses the potential pro- and anticollusive effects of long-term business strategies, especially for cooperation and reinvestment in production, financing and management compensation, in markets with fluctuating demand. The method of supergame theory is applied to integrate long-run decisions and different types of demand into the analysis. Aside from its contributions to the theoretical literature, the book provides valuable insights into the design of competition policy. The observed development of prices is an indicator of the extent of collusion in the market and can thereby be used to assess antitrust regulation in certain business areas, and to focus the resources of competition authorities on markets where conditions are conducive to collusion.

In the 1970s, yields on UK commercial investment property appear to have been influenced principally by the cost of long term capital and the rate of rental growth. Consequently, yields tended to respond to the economic cycle, falling in times of economic recovery and rising when the economy moved into recession. However, in the 1980s so far, yield trends appear anomalous by comparison. Yields failed to rise on the advent of the recession in 1980–81, despite a sharp rise in the cost of capital, yet rose in 1982 just when the economy began to emerge from recession, and have since continued to rise as economic recovery and rental growth have gathered pace. This paper seeks to explain recent movements in investment property yields and to reconcile these with trends in the 1970s. It concludes that the behaviour of yields in the 1980s can be explained by the dominance of institutional investors in the property market, and by their perception of the changing risk attributes of property (compared with alternative investments) which have resulted from changes taking place in the investment markets and the UK economy.

This volume, by Joseph Gold, discusses some of the major letgal effects of fluctuating exchange rates in both public international law and national law. The problems and similarities in the solutions are reviewed, and the author recommends further developments in the law

Scholars have studied multiple femininities across different spaces by attributing variation to cultural/spatial contexts. They have studied multiple femininities in the same space by attributing variation to class/race positions. However, we do not yet know how women from the same cultural, class, and race locations may enact multiple femininities in the same context. Drawing on observations and interviews in a women-only bazaar in Pakistan, I show that multiple femininities can exist within the same space and be enacted by the same individual. Working-class women workers in Meena Bazaar switched between performances of "pariah femininity" and "hegemonic femininity," patching together contradictory femininities to secure different types of capital at the organizational and personal levels. Pariah femininities enabled access to economic capital but typically decreased women's symbolic capital, whereas hegemonic femininities generated symbolic capital but could block or enable access to economic capital. The concept of a patchwork performance of femininity explains how and why working-class women simultaneously embody idealized and stigmatized forms of femininity. Furthermore, it captures how managerial regimes and personal struggles for class distinction interact to produce contradictory gender performances. By examining gender performances in the context of social stratification, I explain the structural underpinnings of working-class women's gendered struggles for respectability and work.