Monitoring Leverage

John Geanakoplos, Lasse Heje Pedersen

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Abstrakt

We argue that leverage is a central element of economic cycles and discuss how leverage can be properly monitored. While traditionally the interest rate has been regarded as the single key feature of a loan, we contend that the size of the loan, i.e., the leverage, is in fact a more important measure of systemic risk. Indeed, systemic crises tend to erupt when highly leveraged economic agents are forced to deleverage, sending the economy into recession. We emphasize the importance of measuring both the average leverage on old loans (which captures the economy's vulnerability) and the leverage offered on new loans (which captures current credit conditions) since the economy enters a crisis when leverage on new loans is low and leverage on old loans is high. While leverage plays an important role in several economic models, the data on leverage is model-free and simply needs to be collected and monitored.
OriginalsprogEngelsk
TitelRisk Topography : Systemic Risk and Macro Modeling
RedaktørerMarkus Brunnermeier, Arvind Krishnamurthy
Udgivelses stedChicago
ForlagUniversity of Chicago Press
Publikationsdato2014
Sider113-127
Kapitel8
ISBN (Trykt)9780226077734
ISBN (Elektronisk)9780226092645
StatusUdgivet - 2014

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