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When: Wednesday 17 April 2019, 12:30 - 13:30
Where: Baltimore Auditorium, Bloomfield Building

In this talk we will focus on a field of research within mathematical finance which known as market microstructure. This area of research deals with issues of market structure and design, price formation, transaction costs and investor behavior, among others. Modern financial markets involve a range of participants who place buy and sell orders across a wide spectrum of time scales. We have pension funds that rebalance their portfolio on an annual basis, and on the other side of the scale, automated market-making algorithms and high frequency trading firms that submit several thousands of orders per second. In our research we use mathematical tools, mostly from probability theory and stochastic analysis, in order to model the behavior of these different types of market participants, who are interacting with each other. From the analysis of the models, we often deduce explanations and quantitative description of various macro phenomena in the stock market. For example we design models in order to explain market volatility, price dynamics, transaction costs and to investigate the reasoning behind the repeated occurrence of ’flash crashes’.