What educational production functions really show: a positive theory of education spending

TLDR: The authors argue that the public sector typically chooses spending on inputs such that the productivity of additional spending on books and instructional materials is 10 to 100 times larger than that of extra spending on teacher inputs (for example, higher wages, small class size) and argue that this pervasive and systemic deviation of actual spending from the technical optimum requires a political, not economic or technical, explanation.

Abstract: The accumulated results of empirical studies show that the public sector typically chooses spending on inputs such that the productivity of additional spending on books and instructional materials is 10 to 100 times larger than that of additional spending on teacher inputs (for example, higher wages, small class size) The authors argue that this pervasive and systemic deviation of actual spending from the technical optimum requires a political, not economic or technical, explanation The evidence is consistent only with a class of positive models in which public spending choices are directly influenced by a desire for higher spending on teacher inputs, over and above their role in producing educational outputs This desire could be due either to teacher power, or bureaucratic budget-maximizing behavior, or political patronage The authors conclude by exploring the implications of these positive political models of educational spending behavior for various types of proposed educational reforms (localized control, parental participation, vouchers, and so on) which requires an examination of how the proposed reforms shift the relative powers of the stakeholders in the educational system: students and parents, educators, bureaucrats, and politicians