This paper proposes a formal model of migration in which workers are heterogeneous and markets are stochastically correlated. We derive and characterize the optimal migration pattern. It is shown to depend on differences in expected earnings, costs of migration, income risks, and more...

Was the increase in income inequality in the US due to permanent shocks or merely to anincrease in the variance of transitory shocks? The implications for consumption and welfaredepend crucially on the answer to this question. We use CEX repeated cross-section data onconsumption and income to...

This paper analyzes dynamic equilibrium risk sharing contracts between profit-maximizing intermediaries and a large pool of ex-ante identical agents that face idiosyncratic income uncertainty that makes them heterogeneous ex-post. In any given period, after having observed her income, the agent...

Does it make us unhappier when we compare our consumptionwith that of the Joneses or our own past achievements? This paper tries ananswer by bringing together two disparate literatures: the macro (growth)theory on habit formation and the applied literature related to the Easterlinparadox. Using...

We prove that for any incomplete market and any concave utilityfunction the marginal propensities to consume and to save are alwayspositive. Furthermore, we introduce a class of incomplete markets thatincludes almost all well known examples of market incompleteness infinance and macroeconomics....

This paper investigates the impact of the desire to keep up with the Joneses (KUJ) on economic growth and optimal tax policy in a continuous time overlapping generations model with AK technology and gradual retirement. Due to the desire to KUJ, the propensity to consume out of total wealth rises...

This paper shows that a Nash equilibrium consisting of strategies of choosing a Pareto inefficient transition path is selected by households even without frictions as a result of the revealed government failure in supervision of financial markets. The Pareto inefficiency causes the generation of...

This paper shows that a Nash equilibrium consisting of strategies of choosing a Pareto inefficient transition path is selected by households even without frictions as a result of the revealed government failure in supervision of financial markets. The Pareto inefficiency causes the generation of...

Prolonged rapid growth, i.e. a "catching-up" process, is known to be accompanied by high rates of household saving. This phenomenon is central in explaining the direction of international capital flows and trade imbalances in the past several decades, yet it is very much in contradiction to...

This thesis is built upon two core arguments. The first is the notion that the demographic transition should be narrated through the perspective of ageing rather than population growth and the second is that ageing on a macroeconomic level represents a strong driver of international capital...