We investigate how social composition affects competitive and cooperative behavior in a linear growth model without a priori secure property rights. If a society is homogenous or highly fractionalized it is in the self-interest of people to cooperate. The first best allocation is enforced...

We develop a simple model of short- and long-term unemployment to study how labor market institutions interact with labor market conditions and personal characteristics of the unemployed. We analyze how the decision to exit unemployment and to mitigate human capital degradation by retraining...

This paper provides a unified growth theory, i.e. a model that explains the very long-run economic and demographic development path of industrialized economies, stretching from the pre-industrial era to present-day and beyond. Making strict use of Malthus’ (1798) so-called preventive check...

This paper investigates the interactive impact of subsistence consumption and child mortality on fertility choice and child expenditure. It offers an explanation for why mankind multiplies at higher rates at geographically unfavorable, tropical locations. In a macro-economic framework it...

This paper augments an R&D-based growth model of the third generation with human capital accumulation and impure altruism, calibrates it with U.S. data, and investigates whether the market provides too little or too much R&D. For benchmark parameters the market share of employment in R&D is...

This study provides a unified growth theory to correctly predict the initially negative and subsequently positive relationship between child mortality and net reproduction observed in industrialized countries over the course of their demographic transitions. The model captures the intricate...

The present paper provides a new theory of capital accumulation and growth. While the law of motion for capital per worker is structurally identical to that of the neoclassical growth model (Solow, 1956), the underlying foundation is very different. In contrast to the Solow model, the purposed...

This paper investigates how social composition affects social conflict and economic development when property rights are unenforceable. Groups follow Markovian strategies for consumption and investment and may also spend effort in an resource appropriation contest. It is shown that conflict...

This paper develops a bio-economic Malthusian growth model. By integrating recent research on allometric scaling, energy consumption, and ontogenetic growth we provide a model where subsistence consumption is endogenously linked to body mass and fertility. The theory admits a two-dimensional...

The present study examines whether the Preston curve reflects a causal impact of income on longevity or, for example, factors correlated with both income and life expectancy. In order to understand the Preston curve better, we develop a model of optimal intertemporal consumption in which the...