Why do prices in Spain's regions fail to converge? The prime suspects for this puzzling result are differences in … illustrate the effect of barriers on prices. A unique data set-derived from an extensive analysis of competition policies in … Spain- provides evidence that barriers to entry increase regional prices. The evidence also suggests that, consistent with …

estimates are potentially inefficient and open to omitted variable bias for two reasons. First, they use average prices across … outlets as the left-hand-side variable. Second, quality-adjusted prices of non-comparable replacements, required when products …

prices for selected agricultural crops, and finally, quantity and value of imports and exports of selected commodities. Data …, costs of production, consumption of agricultural commodities, selected retail price indices and mixed average procurement …