across countries, we show that these expenditures explain the relative rise of concentration and market power in the US …

US government bonds are widely considered to be the world's safe store of value. US government bonds are a large … fraction of safe asset portfolios, such as the porfolios of many central banks. The world demand for safe assets leads to low …

We consider nonparametric identification in models of differentiated products markets, using only market level … models widely used in applied work. We allow for product/market-specific unobservables, endogenous product characteristics (e …

the lease. This option price cannot be controlled when the car is sold. We show that in a world with symmetric information … behavior in the car market. We show that a social planner can use leasing contracts to improve welfare but they are imperfect … tools; they cannot generally achieve first best while other mechanisms can. We also show that a producer with market power …

the demand and suppoly for labor-intensive care. Many economists have argued that aging will raise the market demand for … long-term care, and hence price and quantity through classic market effects. We argue that the direct effect of aging is to … lower the demand for market care by incresing the supply of home production. By influencing the length of frail lifetimes …

approximates Harris' (1954) market-potential function. The estimation results show how far demand linkages extend across space and …