COMPETITIVE BEHAVIOR IN THE FOOD RETAILING INDUSTRY

We develop a flexible model to examine competitive conditions in the food retailing industry based on the Box-Cox transformation of the demand and industry equilibrium conditions. The impact of key technological and market developments on shifts in the competitive index is examined. Adoption of optical scanning technology was positively related to the market power index but the index was stable and consistent with competitive conditions over the 1982-1992 period.market power, food retailing, Box-Cox model, technological innovations, Agribusiness, Industrial Organization,

Skew-varicose instability in two-dimensional generalized Swift-Hohenberg equations

We apply analytical and numerical methods to study the linear stability of stripe patterns in two generalizations of the two-dimensional Swift-Hohenberg equation that include coupling to a mean flow. A projection operator is included in our models to allow exact stripe solutions. In the generalized models, stripes become unstable to the skew-varicose, oscillatory skew-varicose, and cross-roll instabilities, in addition to the usual Eckhaus and zigzag instabilities. We analytically derive stability boundaries for the skew-varicose instability in various cases, including several asymptotic limits. We also use numerical techniques to determine eigenvalues and hence stability boundaries of other instabilities. We extend our analysis to both stress-free and no-slip boundary conditions and we note a crossover from the behavior characteristic of no-slip to that of stress-free boundaries as the coupling to the mean flow increases or as the Prandtl number decreases. Close to the critical value of the bifurcation parameter, the skew-varicose instability has the same curvature as the Eckhaus instability provided the coupling to the mean flow is greater than a critical value. The region of stable stripes is completely eliminated by the cross-roll instability for large coupling to the mean flow

Exchange rate depreciation and exports: the case of Singapore revisited

This article revisits the weak relationship between exchange rate depreciation and exports for Singapore, using a bivariate generalized autoregressive conditional heteroscedasticity in mean model that simultaneously estimates time-varying risk. The evidence shows that depreciation does not significantly improve exports, but that exchange rate risk significantly impedes exports. In sum, Singaporean policy makers can better promote export growth by stabilizing the exchange rate rather than generating its depreciation.

Das PC-Einstiegspaket - DAISY (Datenverarbeitungs- und Informationssystem) Benutzerhandbuch

With disquette. Mit DisketteCopy held by FIZ Karlsruhe / FIZ - Fachinformationszzentrum Karlsruhe / TIB - Technische InformationsbibliothekSIGLEDEGerman

Estimating money demand functions for South Asian countries

Money demand function, Cash-in-advance model, Panel cointegration, Panel Granger causality, C22, C23, E41, E52, P52,