Food Prices and Market Structure in Sweden
利用瑞典大量商店的面板数据，研究市场结构变量对食品价格差异的影响，发现商店自身特征（如规模和连锁归属）是价格差异的主要解释因素，市场结构的影响虽弱但存在。
This paper examines retail grocery price levels across a large panel of stores in Sweden. We explain price variation across stores by market structure variables to capture differences in competition intensity and a number of store– and region–specific factors. Most of the explained variation in prices can be attributed to store–specific factors such as size and chain affiliation. Overall, the relation between market structure variables and food prices is weak, and effects are small in percentage terms. Nevertheless, higher local concentration of stores, higher regional wholesaler concentration and a lower market share of large stores are all correlated with higher prices.