This paper provides a textbook example of integration between commodity markets, and the subsequent price convergence or absence thereof. We analyze price relations between spot markets for natural gas in Europe. We apply time-varying coefficient estimation applying the Kalman filter, to test...

This paper demonstrates the relationship between migration motivations and intended durations of stay and subsequent early integration among recent east-west European migrants. We use a unique, four-country data source covering over 3,500 recently arrived (previous 18 months) Polish immigrants....