Bjurek, Hans; Kjulin, Urban; Gustafsson, Bjorn - In: Scandinavian Journal of Economics 94 (1992) Supplement, pp. 173-87
Efficiency differences among day care centers and productivity change over time are examined on the basis of nonparametric frontiers calculated using the data envelopment analysis methodology. The data consist of approximately 200 public day care centers in Gothenburg, Sweden, for the years 1988...