contribution of the number of firm-products, their average attributes (quality and efficiency) and heterogeneity around the mean … variation in sales, while the remaining part is equally accounted for by average attributes and their dispersion. Quality is the … distribution of firms' sales, especially due to heterogeneity in quality. These countries also tend to be more likely to host …

the effect of connecting a household to the grid and the quality of electricity, defined as hours of daily supply. The … quality of electricity (in terms of fewer outages and more hours per day) increases non-agricultural incomes by about 28 …

In many cases consumers cannot observe firms' investment in quality or safety, but have only beliefs on the average … quality of the industry. In addition, the outcome of the collective investment game of the firms may be stochastic since firms … consumers' subjective perceptions of the industry level of quality matter, the regulator may make information available to firms …