When retailers make product assortment changes by eliminating certain stockkeeping units (SKUs), how does this affect sales of individual brands? This is the main question the authors address in this article. Using data from an online retailer that implemented a permanent systemwide SKU...

The authors examine incumbent retailers' reactions to a Wal-Mart entry and the impact of these reactions on the retailers' sales. They compile a unique dataset which represents a natural experiment consisting of incumbent supermarket, drug, and mass stores in the vicinity of seven Wal-Mart...

Hollow anammox granules have been concerned in the field of anammox granular sludge technology. So far, little information is available about the effect of shear stress on hollow anammox granules. The evolution of hollow granular sludge at three shear stresses (τ = 0.014, 0.041, and 0.075 Pa)...

Despite heavy research, the efficiencies of blue perovskite light-emitting diodes (LEDs) lag behind those of their green and red cousins. One of the most critical problems is the lack of technology to obtain both high blue emission and spectral stability of perovskite in thin films. Herein, we...

effect on consumption in both the short and the long run, but has an ambiguous effect on donations.

In this paper we investigate the trade-off faced by regulators who must set a price for an intermediate good somewhere between the marginal cost and the monopoly price. We utilize a growth model with monopolistic suppliers of intermediate goods. Investment in innovation is required to produce a...

Two conflicting conclusions exist about the relationship between fertility and wage rates in steady-state equilibria in the literature. While Malthus and others predict a positive relation, R. J. Barro and G. S. Becker find a negative relation. Using several specifications of utility functions,...