Market liquidity is typically characterized by a number of ad hoc metrics, such as depth, volume, bid-ask spreads etc … grounds. In this paper we propose a welfare-based denition of liquidity and characterize its relationship to the usual proxies … intermediaries pursue prot opportunities by providing intermediation services (i.e. "liquidity") in exchange for an endogenous fee …

identical, implying that the concentration of liquidity in one asset is socially desirable. At the same time, too many buyers …

Market liquidity is typically characterized by a number of ad hoc metrics, such as depth (or market impact), volume … the existing metrics on welfare grounds. In this paper we propose a welfare-based denition of liquidity and characterize … intermedia- tion services (i.e. \liquidity") in exchange for an endogenous fee. Our model is well suited to study the contagion …

We provide a model that links an asset's market liquidity; i.e., the ease with which it is traded; and traders' funding … liquidity, i.e. the ease with which they can obtain funding. Traders provide market liquidity, and their ability to do so …, depend on the assets' market liquidity. We show that, under certain conditions, margins are destabilizing and market …

sampling frequency of the data; iii) volatility, the limit order book, and liquidity, in terms of tightness, depth, and … empirical evidence about stock market volatility, liquidity, limit order books, and market frictions, and provides a natural …