This paper proposes a structural time-series model for the intraday price dynamics on fragmented financial markets. We generalize the structural model of Hasbrouck () to a multivariate setting. We discuss identification issues and propose a new measure for the contribution of each market to...

We study the consequences of trading fragmentation and speed on liquidity and asset prices. Exchanges invest in speed-enhancing technologies and price trading services to attract investors. Investors trade due to idiosyncratic preference shocks. We show how the resulting market organization...

We explore the role of monetary policy in a world of segmented financial markets, where only the agents who trade stocks encounter financial income risk. In such an economy, the welfare maximizing monetary policy attains the novel role of sharing the financial market risk traders face, among all...