Efficiency, Productivity and Determinants of Inefficiency at Public Day Care Centers in Sweden
研究了瑞典公立日托中心的效率与生产率，并分析了导致低效率的因素，对关注公共服务效率的经济学者有参考价值。
Hans Bjurek, Urban Kjulin, , Efficiency, Productivity and Determinants of Inefficiency at Public Day Care Centers in Sweden, The Scandinavian Journal of Economics, Vol. 94, Supplement. Proceedings of a Symposium on Productivity Concepts and Measurement Problems: Welfare, Quality and Productivity in the Service Industries (1992), pp. S173-S187