The objective of the paper is to analyze the formation of social networks where individuals are allowed to engage in several groups at the same time. These group structures are interpreted here as social networks. Each group is supposed to have specific rules or constitutions governing which...

We apply the difference-in-discontinuities design to disentangle the fiscal effects of the governance system conditional on electoral systems. We take advantage of a natural experiment, which involves two institutional reforms at the local level in Poland. The first reform introduced two...

The security of energy supply is a key geopolitical factor in the relationship between the European Union and the southern neighborhood countries of the Middle East and North Africa region. We study the response of eight Mediterranean economies to exogenous oil supply shocks. We focus on the...

Increasing oil security represents one of the most important policy actions, especially within IEA countries. Short and long term mechanisms could help such goal. On the short term side, revision of IEA emergency response oil stock system has been discussed. The attention is mainly focused on...

The weekly release of the U.S. inventory level by the DOE-EIA is known as the market mover in the U.S. oil futures market and to be a significant piece of information for all world oil markets in which the WTI is a price benchmark. We uncover suspicious trading patterns in the WTI futures...

This paper provides an analysis of the link between the global market for crude oil and oil futures risk premium at the aggregate level. It off ers empirical evidence on whether the compensation for risk required by the speculators depends on the type of the structural shock of interest....