THE GENERAL STRUCTURE OF OPTIMAL INVESTMENT AND CONSUMPTION WITH SMALL TRANSACTION COSTS

We investigate the general structure of optimal investment and consumption with small proportional transaction costs. For a safe asset and a risky asset with general continuous dynamics, traded with random and time‐varying but small transaction costs, we derive simple formal asymptotics for the optimal policy and welfare. These reveal the roles of the investors' preferences as well as the market and cost dynamics, and also lead to a fully dynamic model for the implied trading volume. In frictionless models that can be solved in closed form, explicit formulas for the leading‐order corrections due to small transaction costs are obtained.     

From carry trades to curvy trades

Traditional carry trade strategies are based on differences in short-term interest rates, neglecting any other information embedded in yield curves. We derive return distributions of currency portfolios, where the signals to buy and sell currencies are based on summary measures of the yield curve. We find that a strategy based on the relative curvature factor, the curvy trade, yields higher Sharpe ratios and a smaller return skewness than traditional carry strategies. Curvy trades build less upon the typical carry currencies and are hence less susceptible to crash risk. In line with that, standard pricing factors of traditional carry returns fail to explain curvy trade returns.     

Antitrust Compliance: Managerial Incentives and Collusive Behavior

This article analyzes a manager's incentives to establish and sustain an illegal collusive agreement if her firm is subject to profit shocks, if her utility function is concave in profits (e.g., because of risk aversion), and if she incurs opportunity costs (e.g., by violating a social norm). The model supports the empirical observation that if collusion is to be established and sustained in a state with low profits, then this state must be quite persistent. It also indicates that compliance with antitrust laws can be ensured best by combining a zero tolerance policy with a strategy of forgiveness. Copyright © 2017 John Wiley & Sons, Ltd.     

The Value‐relevance of Equity Accounted Carrying Amounts and Disclosed Fair Values of Listed Associates

Equity accounting is a controversial accounting treatment. Although fair value measurement represents a potential alternative measurement base, information content may be lost under a pure fair value measurement approach. This study investigates the value‐relevance of equity accounted carrying amounts and disclosed fair values of listed associates, using a sample of the largest firms listed in South Africa, Australia and the UK. The main finding is that the alternative measurement bases are incrementally value‐relevant during the sample period of 31 December 2005 to 31 December 2011, implying that equity investors do not blindly accept either measurement base. Rather, investors include their own assessment of the intrinsic value of an entity's listed associates in their valuations.     

AVB und Beratungspflichten – Markt – und Produktdisposition

Although insurers over services, they are no advisers/consultants. Nevertheless, the jurisdiction has already established an pre-contractual insurers duty to l advise insureds under the validity of the old VVG according to general civil law rules. Article 6 VVG standardizes such duties for the first time and aims to guarantee customers proper advice/consultancy particularly before the contract ends to prevent lapses in coverage. Therewith some considerable questions referring to concurrent laws concerning the law of the general terms and conditions, which aim to guarantee reliable and transparent information for customers in a quite similar way, arise. The author discusses this problem of concurrent laws and develops criteria which show which law is applicable on what occasion. As a result, a possibly contradictory pre-contractual double review is avoided.     

Internationalization and business tax revenue—evidence from Germany

The ongoing internationalization of business activity fuels concerns that governments may lose their ability to tax business income. By using data on sixteen German states from 1970 to 2005, we estimate the impact of internationalization, measured by trade volumes and stocks of foreign direct investment, on business tax revenues. We control for the impact of internationalization on business profits. Surprisingly, we find strong and robust evidence for a positive impact of internationalization on tax revenue. An increase in the internationalization indicator of ten percent increases tax revenue by over three percent. This counterintuitive result may be explained by higher tax avoidance activity of purely national firms or by legal provisions in the tax law which can be used as tax loopholes in the case of domestic transactions as opposed to cross-border transactions.     

A review of integrated QCA and statistical analyses

Systematically combining quantitative and qualitative research approaches offers the potential for a more comprehensive and nuanced understanding of social scientific phenomena. With their strong opportunities for building, qualifying, and testing social scientific theories, methodological integrations thus enable researchers to make substantive contributions that would not have been possible with one method alone. In this article we demonstrate how the integration of Qualitative Comparative Analysis (QCA) and conventional statistical analysis offers researchers new opportunities for contributing to the social sciences. Whereas statistical analysis is variable-oriented and relies on correlational analysis to make comparisons across cases, QCA is based on set theory, is case oriented, and relies on Boolean algebra to make comparisons between cases. Drawing on the literature on the interdependency between theoretical contribution and methodology, we review studies that integrate QCA and statistical analysis to explain how the specific combination of these two approaches allows researchers to strengthen the theoretical contribution of their research. From our review we identify common challenges and provide solutions for integrating QCA and statistical analysis.