Alexander Braun
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Prof. Dr.
Last Name
Braun
First name
Alexander
Email
alexander.braun@unisg.ch
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+41 71 224 3653

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Now showing 1 - 10 of 122
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Publication

Market-Consistent Valuation of Natural Catastrophe Risk

2022-01 , Beer, Simone , Braun, Alexander

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Publication

Fair Value Measurement in the Life Settlement Market

2020-01 , Braun, Alexander , Xu, Jiahua

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How to Derive Optimal Guarantee Levels in Participating Life Insurance Contracts

2019-12-04 , Braun, Alexander , Fischer, Marius , Schmeiser, Hato

Participating life insurance contracts are common products in Europe. Their savings component typically exhibits an interest rate guarantee in combination with a surplus participation mechanism. Together, these two features constitute an embedded option. The purpose of this article is to show how an insurance company can maximize policyholder utility by setting the level of the interest rate guarantee in line with his preferences. We develop a general model of life insurance, taking stochastic interest rates, early default and regular premium payments into account. Furthermore, we assume that equity holders receive risk adequate returns on their initial equity contribution. Our findings show that the optimal level for the interest rate guarantee is far below the maximum value typically set by the supervisory authorities and insurance companies.

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Publication

Determinants of the Demand for Political Risk Insurance: Evidence from an International Survey

2018-05-14 , Braun, Alexander , Fischer, Marius

The exposure of corporations to political risks has increased in the past years, mainly driven by globalization and the outsourcing of production to emerging markets. One way to address these new challenges is Political Risk Insurance (PRI), which, however, has attracted little scholarly interest to date. We address this research gap by identifying the major determinants of the demand for PRI. To this end, we developed an extensive questionnaire and distributed it among insurance managers in Central Europe. Our empirical analysis builds on Exploratory Factor Analysis and Logistic Regression. We are able to show that a company’s propensity to purchase PRI increases with its perceived exposure to political risks, its perceived experience and expertise with the instrument, as well as the perceived adequacy of the contract’s price. Other factors, such as the size of the firm, the perceived importance of its risk management department or the perceived availability of information on PRI, do not seem to play a significant role.

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Publication

Der vollkommene Markt – ein nahendes Dilemma der Assekuranz?

2022-09 , Fleischer, Martin , Braun, Alexander , Ufert, Aneta , Walthes, Frank

Perfect competition describes the theoretical ideal of a market. For the insurance industry, this paradigm is more current than ever before. The digital transformation shifts the insurance industry closer towards a perfect market. The existing polypolistic market structure splits up into two submarkets: a classical market with customers that rarely compare different offerings and a transparent market in which standardization and comparisons are of central importance. The transparent comparison market is much closer to a perfect market than the classical market. It also implies other profit function drivers. As a consequence, the two submarkets require different competencies. Insurers are confronted with a strategic dilemma: they can either enter the comparison market and specialize on its characteristics by being a fast follower. Alternatively, they have to lay their focus on the permanent break-away from the comparison market and build up unique selling propositions that make them first movers.

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Publication

Pricing Industry Loss Warranties in a Lévy-Frailty Framework

2019-11-01 , Beer, Simone , Braun, Alexander , Marugg, Andrin

We propose a novel risk-neutral pricing approach for industry loss warranties. In doing so, we explicitly take into account the statistical dependence of the losses on individual policies in the underlying insurance portfolio, caused by the occurrence of a natural catastrophe. Inspired by recent advances in the structured credit literature, we model joint claim events in a Lévy–Frailty framework with a stochastic time change. Event time is driven by rare and large jumps of a compound Poisson subordinator and thus elapses more quickly when a natural catastrophe has struck, leading to a clustering of losses. We estimate the model on historical ILW quotes and obtain encouraging fit statistics.

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Publication

Consumption-Based Asset Pricing in Insurance Markets: Yet Another Puzzle?

2019-09-01 , Braun, Alexander , Luca, Daliana , Schmeiser, Hato

Although insurance is the typical textbook example for an asset that negatively correlates with consumption, the suitability of the classical consumption‐based asset pricing model with power utility to explain historical premiums and claims has not yet been tested. We fill this gap by fitting it to property–casualty market data for Australia, Italy, the Netherlands, the United States, and Germany. In doing so, we reveal yet another asset pricing anomaly. More specifically, the consumption‐based model implies even larger relative risk aversion coefficients in the insurance sectors than in the equity markets of the aforementioned countries. To solve this puzzle, we draw on the loss aversion and narrow framing approach by Barberis, Huang, and Santos (2001) as well as the second‐degree expectation dependence framework by Dionne, Li, and Okou (2015), with encouraging results.

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Publication

Performance Measurement in the Life Insurance Industry: An Asset-Liability Perspective

2021-01-01 , Braun, Alexander , Schreiber, Florian

Established risk-adjusted investment performance measures such as the Sharpe, the Sortino or the Calmar Ratio have been developed with an exclusive focus on the mutual and hedge fund industries. Consequently, they are less suited for liability-driven investors such as life insurance companies, whose portfolio choice is materially affected by the substantial interest rate sensitivity of their long-term contractual obligations. In order to tackle this limitation, we introduce the Asset-Liability Sharpe Ratio, which is theoretically motivated, computable based on publicly-available data, incentive compatible, and relevant. Hence, it should be a valuable new tool for performance assessment in the life insurance industry.

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Publication

Asset Pricing and Extreme Event Risk: Common Factors in ILS Fund Returns

2019-05 , Braun, Alexander , Ben Ammar, Semir , Eling, Martin

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Are Insurance Balance Sheets Carbon-Neutral? Harnessing Asset Pricing for Climate-Change Policy

2019-10 , Braun, Alexander , Utz, Sebastian , Xu, Jiahua

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