Events

Join us for an informal virtual Q&A chat with Emily Brierley, MBA Recruitment & Admissions team.
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Ralph Koijen, AQR Capital Management Professor of Finance, University of Chicago Booth School of Business

We develop a framework to theoretically and empirically analyse the fluctuations of the aggregate stock market. Households allocate capital to institutions, which are fairly constrained, for example operating with a mandate to maintain a fixed equity share or with moderate scope for variation. As a result, the price elasticity of demand of the aggregate stock market is small, so flows in and out of the stock market have large impacts on prices.

Using the recent method of granular instrumental variables, we find that investing $1 in the stock market increases the market’s aggregate value by about $5. We also show that we can trace back the time variation in the market’s volatility to flows and demand shocks of different investors.

We also analyse how key parts of macro-finance change if markets are inelastic. We show how general equilibrium models and pricing kernels can be generalised to incorporate flows, which makes them amenable to use in more realistic macroeconomic models, and to policy analysis. Our calibration implies that government purchases of equities have a non-trivial impact on prices. Corporate actions that would be neutral in a rational model, such as share buybacks, have substantial impacts too.

Our framework allows us to give a dynamic economic structure to old and recent datasets comprising holdings and flows in various segments of the market. The mystery of apparently random movements of the stock market, hard to link to fundamentals, is replaced by the more manageable problem of understanding the determinants of flows in inelastic markets. We delineate a research agenda that can explore a number of questions raised by this analysis, and might lead to a more concrete understanding of the origins of financial fluctuations across markets.

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Mr Ramit Debnath, EPRG, University of Cambridge

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Join us at our online information session on 28 April. Marwa Hammam, MFin Executive Director, will provide an overview of the programme and take your questions. We will also be joined by MFin alumni, who will share their perspective and answer your questions. The information session will cover areas such as:

• Programme structure.
• Careers service.
• Class profile.
• Admissions criteria.
• Fees and funding.
• Student experience of the programme and the University of Cambridge.

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Meet the Executive MBA Admissions Team online as they explain the structure, benefits and outcomes of the programme, and provide information on eligibility and requirements.
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