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A Simple Macroeconomic Model with Extreme Financial Frictions

We develop a simple macroeconomic model with extreme financial frictions (no credit markets) and show that poverty traps can emerge even in the absence of leverage. In our model, farmers produce fruit by renting land from landlords. Crops are exposed to aggregate shocks (weather risk). To guarantee themselves a positive consumption level even after a bad crop, farmers store fruit as…

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English / 01/01/2017

Asymmetric stable Paretian distribution testing

Two new tests for the symmetric stable Paretian distribution with tail index 1 < α < 2 are proposed. The test statistics and their associated approximate p-values are instantly computed and do not require use of the stable density or distribution or maximum likelihood estimation. They exhibit high power against a variety of alternatives, and much higher power than the existing…

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English / 01/01/2017

How Much Is the Gap? Efficient Jump Risk-Adjusted Valuation of Leveraged Certificates

This paper develops a novel and highly efficient numerical algorithm for the gap risk-adjusted valuation of leveraged certificates. The existing literature relies on Monte Carlo simulations, which are not fast enough to be used in a market making environment. This is because issuers need to compute thousands of price updates per second. By valuing leveraged certificates as multi-…

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English / 01/01/2017

Measuring value sensitivity in medicine

Background: Value sensitivity – the ability to recognize value-related issues when they arise in practice – is an indispensable competence for medical practitioners to enter decision-making processes related to ethical questions. However, the psychological competence of value sensitivity is seldom an explicit subject in the training of medical professionals. In this contribution, we…

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English / 01/01/2017

Investieren in Mikrofinanz. Erträge und Risiken aus einer Perspektive der Verantwortung

Die Autorinnen schreiben den Akteuren der Mikrofinanzidustrie eine besonder Verantwortung für uhre Kunden, die ärmeren Bevölkerungsschichten, zu. Anders als in der konventionellen Finanzindustrie sind Mikrofinanzkunden in besonderem Masse verwundbar, vulnerabel. Diese Besonderheit rechtfertigt es, hohe Anforderungen an den Kundenschutz zu stellen. Ein solcher scheint zusätzlich…

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Deutsch / 01/01/2017

The circular unitary ensemble and the Riemann zeta function: the microscopic landscape and a new approach to ratios

We show in this paper that after proper scalings, the characteristic polynomial of a random unitary matrix converges to a random analytic function whose zeros, which are on the real line, form a determinantal point process with sine kernel. Our scaling is performed at the so-called “microscopic” level, that is we consider the characteristic polynomial at points whose distance to $1$…

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English / 01/01/2017

Funding shocks and banks' credit reallocation

This paper provides evidence on the strategic lending decisions made by banks facing a negative funding shock. Using bank-firm level credit data, we show that banks reallocate credit within their domestic loan portfolio in at least three different ways. First, banks reallocate to sectors where they have high sector presence. Second, they also reallocate to sectors in which they are…

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English / 06/12/2016

Gender bias and credit access

We extract an exogenous measure of gender bias from survey responses by descendants of U.S. immigrants on questions about the role of women in society. We then use data on around 6,000 small business firms from 17 countries and find that in high-gender-bias countries, female entrepreneurs are more likely to opt out of the loan application process and to resort to informal finance,…

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English / 01/12/2016

Old-age provision: past, present, future

This is a summary of the main topics and findings from the Swiss Risk and Insurance Forum 2015. That event gathered experts from academia, insurance industry, regulatory bodies, and consulting companies to discuss the past and current developments and necessary next steps for dealing with old-age provision. Topics include the pension funding gap, demographic and societal challenges,…

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English / 01/12/2016

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