Efficiency Wages and Industry Wage Differentials: A Comparison Across Methods of Pay
利用1985年瑞典金属行业男性生产工人数据，比较计件工资与计时工资下行业工资差异的大小和解释力，检验效率工资理论，结果对理论提供混合支持。
Efficiency wage considerations should be less important for piece-rate pay than for time wages. Therefore, if industry wage differentials reflect efficiency wage factors, then these pay differences should be less sizable and have less explanatory power for piecework than for timework. We test this proposition using wage data for male production workers employed in the Swedish metalworking industries in 1985. The data are partitioned into two groups of workers. In our preferred subsample of workers who received pay under both piece rates and time wages, our results are uniformly consistent with efficiency wage implications for industry wage differentials. For the subsample of workers who received pay under either piece rates or time wages, industry wage differentials are of equal importance under either pay scheme. These latter results, however, may also be influenced by unaccounted for sorting of workers and employers across methods of pay. Overall, our examination of industry wage differentials across methods of pay provides mixed support for efficiency wage theory.