This paper examines the importance of regional labor reallocation for unemployment and studies the link between inter-regional mobility and reallocation. I construct a multi-region economy with segmented labor markets, endogenously determined regional house prices, and limited worker mobility,...

Housing transactions by existing homeowners take two steps, a purchase of a new property and sale of the old housing unit. These two decisions are not independent, and their sequence may depend on the state of the housing market. This paper shows how the sequence of buyer-seller decisions...

"While the traditional view of financial innovation emphasizes the risk sharing role of new financial assets, belief disagreements about these assets naturally lead to speculation, which represents a powerful economic force in the opposite direction. This paper investigates the effect of...

I review the literature on financial speculation driven by belief disagreements from a macro- economics perspective. To highlight unifying themes, I develop a stylized macroeconomic model that embeds several mechanisms. With short-selling constraints, speculation can generate over- valuation and...

The net effect of financial innovation on portfolio risks depends on the quantitative strength of its effects on the uninsurable and the speculative variances. I consider a calibration of the model for new assets linked to national incomes of G7 countries, which were recommended by Athanasoulis...