behave as if they maximize their net biomass subject to constraints which express the organisms‘ risk of being preyed upon … during predation. Like consumers, organisms face a ‘budget constraint‘ requiring their expenditure on prey biomass not to … exceed their revenue from supplying own biomass. Short-run ecosystem equilibria are defined and derived. The net biomass …

for land and prey biomass. We introduce a competitive allocation mechanism in both submodels such that economic prices and … divergence of prices for biomass and land in both subsystems. Finally, we determine values of all components of the ecosystem in …

This paper investigates Becker, Hornung and Woessmann’s recent claim that education had an important causal effect on … problems, notably the omission of relevant variables which leads to serious bias in the estimated effect of education. When … these problems are corrected, the conclusions of Becker, Hornung and Woessmann no longer hold. Education did not play an …

This contribution investigates the role of education in domestic terrorism for 133 countries between 1984 and 2007. The … findings point at a nontrivial effect of education on terrorism. Lower education (primary education) tends to promote terrorism … education (university education) reduces terrorism in a cluster of countries where conditions are more favorable. This suggests …