Should the EU introduce an Optional European Contract Law Code and what should it look like? By applying economic theories of federalism and regulatory competition (legal federalism), it is shown why an Optional Code would be a very suitable legal instrument within a two-level European System of...

We study changes in the form of government as an example of endogenously determined constitutions. For a sample of 202 countries over the period 1950–2006, we find that most changes are relatively small and roughly equally likely to be either in the direction of more parliamentarian or more...

De jure judicial independence (JI) is the single most important predictor of de facto JI. In this paper, we describe under what conditions countries are likely to include JI in their constitutions. We describe and analyze both their original choice in this regard as well as change over time...

This paper studies the factors driving changes in judicial independence (JI) as incorporated in constitutions. Two indicators of constitutionally safeguarded JI are constructed. Variations in these indicators are identified based on changes in the constitutions of as many as 100 countries that...

This paper agrees that a suitably generalized Darwinism may help understand socioeconomic change, but finds the most publicized generalization by Hodgson and Knudsen unsuitable. To do better, it generalizes the extension of Neo-Darwinism into evolutionary developmental biology ("evo-devo"),...

Human behavior is influenced both by internal norms or values ("what people think to be just behavior") and exogenous restrictions including legal sanctions. In the paper we study the interaction between these legal and extralegal forces and highlight the possibility of a countervailing effect...

A country’s form of government has important economic and political consequences, but the determinants that lead societies to choose either parliamentary or presidential systems are largely unexplored. This paper studies this choice by analyzing the factors that make countries switch from...

According to expressive law theories, expression of values is an important function played by the law. Expressive laws affect behavior, not by threatening sanctions or promising rewards, but by changing individual preferences and tastes and, in some cases, by affecting social norms and values....

Analysis of the economic effects of constitutional rules has made substantial progress over the last decade. This survey provides an overview of this rapidly growing research area and also discusses a number of methodological issues and identifies underresearched areas. It argues that the next...