Rational choice approaches to customary international law have gained in prominence in recent years. Although becoming increasingly sophisticated, they are not able to explain all phenomena of customary international law. This contribution claims that there are two different types of unwritten...

In their majority, public international lawyers postulate that for a new rule of customary law to originate, two conditions must be fulfilled: there must be consistent practice, and it must be shown that this practice is motivated by the belief that such behaviour is required in law. Maurice...

This contribution analyzes the role of consent in the formation of customary law. It will challenge the assumption that customary norms cannot bind states against their will. Relying on game theory, it will distinguish between different situations and argue that the role of consent differs...

Customary law has been criticized from very different angles. Rational choice theorists claim that what looks like custom is nothing but self-interest. Positivists doubt that anything beyond consent assumes the force of law. In this paper, we adopt an experimental approach to test these claims....

Seit Beginn der Transformation haben in den Ländern Mittel- und Osteuropas (MOEL) die interregionalen Disparitäten zugenommen. Insbesondere die Stadt-Land-Gegensätze haben sich verstärkt. Dieser Beitrag zeigt die Entwicklung der Disparitäten auf und diskutiert auf der Basis theoretischer...

This paper compares the increases in access rates to piped water in rural Brazil by localized water supply systems under two different management models. It finds that small-scale supply systems operated and maintained by user associations lead to significantly higher increases in access rates...

The success of health economics and its guidance for health policy heavily rests on the availability of reliable empirical evidence on the demographic, economic, and epidemiological environment, on behavioral relationships, and on the impact of policy interventions. For Sub-Saharan Africa,...

Der Unterschied im Bruttostundenverdienst zwischen Frauen und Männern - der sogenannte Gender Pay Gap - verharrt unter Angestellten seit Jahren bei etwa 30 Prozent. Für den Verdienstunterschied spielen offenbar auch regionale Faktoren eine wichtige Rolle. Der Gender Pay Gap ist in ländlichen...

Worldwide, people are gaining access to a formal bank account, which allows account-based instead of cash payments. Based on a novel randomized control trial, we document that the payment method is an important determinant of savings behavior. In rural India, we study the effect on savings of...

The article describes (concentrates on the description of) the employment development and social problems related to labour market situation in Poland during the transition period (before the EU accession). It consists of four parts. The first gives an overview of basic tendencies in labour...