This paper presents an overlapping generations model to explain why humans live in families rather than in other pair groupings. Since most non-human species are not familial, something special must be behind the family. It is shown that the two necessary features that explain the origin of the...

We consider a multi-sector general equilibrium model with IO linkages, sector-specific productivities and tax rates. Using tools from network theory, we investigate how the IO structure interacts with productivities and taxes in the determination of aggregate income. We show that aggregate...

We propose a model of economic growth in which technological progress is modelled as an expanding random network of ideas. New ideas are created by combining successful old ideas. Old ideas are chosen according to their visibility as ideas, success as generators of innovations and age but the...

In overlapping-generations economies with perfect financial markets and lumpsum taxation, restrictions on the government budget deficits do not limit the set of achievable allocations. For economies in which tax instruments are distortionary and limited in number, deficits are irrelevant only in...

In the present paper the study of the welfare effects of endowment transfers is extended to the set of steady states of a general stationary overlapping generation model. A complete characterization of manipulations by coalitions and transfers which leads to welfare paradoxes is provided.

In this article we examine whether or not the small size (in terms of population) of some German Laender (states) is harmful. The economic theory of federalism forms the ground on which we present empirical evidence, focusing on our own results for the German Laender. We find evidence that...

Public interest in livestock farming is increasing, as is general criticism regarding the welfare of farm animals. In this context, husbandry systems for pigs especially are perceived very negatively. Despite rising concern for animal farming, most people lack detailed knowledge of modern...

The life-span model of selection, optimization, and compensation (SOC) provides a valuable theoretical framework for understanding organizational behaviour related to coping with age-related changes. Although previous research has demonstrated that SOC strategies at work contribute positively to...

The life-span model of selection, optimization, and compensation (SOC) provides a valuable theoretical framework for understanding organizational behaviour related to coping with age-related changes. Although previous research has demonstrated that SOC strategies at work contribute positively to...