Most countries exhibit large and persistent geographical differences in wages, income and unemployment rates. A growing class of place based policies attempt to address these differences through public investments and subsidies that target disadvantaged neighborhoods, cities or regions. Place...

Haavelmo's seminal 1943 paper is the first rigorous treatment of causality. In it, he distinguished the definition of causal parameters from their identification. He showed that causal parameters are de fined using hypothetical models that assign variation to some of the inputs determining...

Almost all international environmental agreements include a minimum participation rule. Under such a rule an agreement becomes legally binding if and only if a certain threshold in terms of membership or contribution is reached. We analyze a cartel game with open membership and heterogeneous...

Most dynamic trade models assume steady state or balanced growth. This paper argues while this can be done in a single region model or a model without trade, the steady state assumption is problematic in a multi-regional setting with trade interactions. This paper shows the consequences of...

The study examines the official bilateral donors’ current aid practice for private sector development (PSD). In particular, it reviews the donors’ major instruments and channels for aid delivery and the extent to which official flows have catalytic effects on private direct foreign capital...

In a panel of West African countries, we investigate whether data on immigrant remittance flows can be used to improve on predictive accuracy of aggregate demand in a systematic way. The results of the prediction experiments are compared to traditional significance tests of asymmetric error...

An intertemporal optimal strategy for accumulation of reversible capital and management of an exhaustible resource is analyzed for a global economy when resource depletion generates discharges that add to a stock pollutant that affects the likelihood for hitting a tipping point or threshold of...

Why do not people evade more taxes when their gain from evasion is higher than the expected penalties? Why does only a small minority evade when a large majority is willing to? These tax evasion puzzles are explained in a labour market framework where employees may combine reported work in firms...