Approximate value-at-risk calculation for heterogeneous loan portfolios: Possible enhancements of the Basel II methodology

This paper presents three possible methods by which the credit value at risk estimates coming from the Basel II IRB approach can be significantly improved upon. The feasibility of the suggested approaches is substantiated by applying it to an exemplary model portfolio.     

Does It Pay to Be Socially Responsible? Evidence from Spain's Retail Banking Sector

This paper extends the research on the relation between financial performance and corporate social responsibility in two respects. First, it develops a model of strategic competition that includes consumer perceptions with respect to firm social performance. It is shown that in the presence of a positive valuation of social responsibility practices by consumers, a firm that endorses this responsible behaviour may obtain a better strategic position in the market, along with higher margin, demand, and profit. Second, the model's predictions are tested with a sample of Spanish banking firms. The empirical analysis confirms that consumers significantly value other features apart from price in making deposit and mortgage decisions, particularly a financial institution's social responsibility. A more disaggregated analysis shows first, that not every CSR dimension has relevance for consumers and second, that customers equally value activities that can have a direct impact on their well‐being (e.g., culture and leisure), as well as other activities that can be viewed more generally as public goods (e.g., heritage and the environment). These conclusions are of interest in the debate about a firm's social or ethical activities. It is shown that, provided that consumers value corporate social responsibility activities, firms can improve both their competitive position in the market and their profits by behaving in a socially responsible manner. Therefore, the design and implementation of corporate social responsibility practices could confer upon firms an initial competitive advantage over their competitors.     

Airline Codeshare Alliances

The paper juxtaposes the challenges that airline codeshare alliances create for analytical information systems on the one hand and their motivation from a marketing perspective on the other. The authors review the state-of-the-art literature on potential marketing benefits and analyze the impact on airline planning systems. In this regard, revenue management systems are of particular interest. Based on a simulation study, the authors infer a severe impact of decentralized codeshare controls as currently widely implemented in the industry on revenue management performance. In the scenarios examined, complementary codesharing reduces alliance-wide revenues by up to 1 %. Losses increase when a carrier experiences high local demand or a high degree of codeshare demand, and disseminate over the whole network. Virtual codeshares also cause losses of 0.3 % to 1.5 % depending on the discount level offered by the marketing carrier and on the demand structure. Finally, the authors formulate a set of managerial implications based on these findings.     

The role of multinational production in a risky environment

This paper explores the aggregate consequences of Foreign Direct Investment (FDI) on the opportunities for risk diversification available to consumers. The crucial difference between FDI and other international financial flows is that the former involves technology flows across countries. We present a model where firm-embedded productivity can be transferred costly across countries through the activity of multinational firms. We find that risk patterns affect multinationals' location decisions and, in turn, these decisions change the scope for international risk diversification even in a world with complete financial markets.     

Pricing American interest rate options under the jump-extended constant-elasticity-of-variance short rate models

This paper demonstrates how to value American interest rate options under the jump-extended constant-elasticity-of-variance (CEV) models. We consider both exponential jumps (see Duffie et al., 2000) and lognormal jumps (see Johannes, 2004) in the short rate process. We show how to superimpose recombining multinomial jump trees on the diffusion trees, creating mixed jump-diffusion trees for the CEV models of short rate extended with exponential and lognormal jumps. Our simulations for the special case of jump-extended Cox, Ingersoll, and Ross (CIR) square root model show a significant computational advantage over the Longstaff and Schwartz’s (2001) least-squares regression method (LSM) for pricing American options on zero-coupon bonds.     

Diffusion of Corporate Responsibility Practices to Companies: The Experience of the Forest Sector

This qualitative study indentifies how corporate responsibility (CR) practices are diffused to companies, as well as the factors that influence this diffusion process. Forest companies, industry associations, non-governmental organizations, and academics in Brazil, Canada, and the United States participated in this interview-based study. Data emerging from a grounded theory approach revealed three factors influencing the diffusion of CR practices to companies: (1) external contextual characteristics, (2) connectors, and (3) experts and expert organizations. These three factors influence each other, meaning that the diffusion process of CR practices is somewhat cyclic. These interactions are usually manifested by companies and expert organizations influencing each other’s actions, being influenced by the external environment, and contributing to the CR trends that are observed in the external environment.     

Housing, credit, and real activity cycles: Characteristics and comovement

This paper describes the characteristics and comovement of cycles in house prices, residential investment, credit, interest rates, and real activity in advanced economies during the past 25 years. Stylized facts and regularities are uncovered using a dynamic generalized factor model and spectral techniques. House price cycles are found to lead credit and real activity over the long term, while in the short to medium term the relationship varies across countries. Interest rates tend to lag other cycles at all time horizons. Although global factors are important, the US business cycle, housing cycle and interest rate cycle generally lead the respective cycles in other countries over all time horizons, while the US credit cycle leads mainly over the long term.     

Advertising strategies for brand image repair: The effectiveness of advertising alliances

Advertising alliances are an effective shortcut to increase brand awareness and improve brand image. However, few studies have compared the effectiveness of advertising alliances with traditional (single-brand) advertising. Thus, this study focuses on a specific type of brand beliefs – namely, brand personality – and compares the ability of advertising alliances and traditional advertising to strengthen positive traits and downplay negative traits for a real brand in need of image repair. The results show that the advertising alliance is considerably more effective in upgrading positive brand personality traits than single-brand advertising. Importantly, this superior effect remained one week after exposure. The choice of advertising strategy had no effect on negative brand personality traits. Implications for advertising management are discussed.     

Comparison of equilibrium actions and payoffs across players in games of strategic complements

This paper provides sufficient conditions for comparing the choices of different players in games of strategic complements. The main results require a weak ordering relation on the best responses of players in the game and their constraint sets. Under additional restrictions, we can also compare their relative payoffs. We offer three applications of our idea to industrial organization and new models of behavioral economics. Specifically, we study horizontal mergers in oligopolies, competition among firms with differentiated demands and costs of production, and a model of biased perceptions.     

Systemic risk contributions: A credit portfolio approach

We put forward a framework for measuring systemic risk and attributing it to individual banks. Systemic risk is coherently measured as the expected loss to depositors and investors when a systemic event occurs. The risk contributions are calculated so as to ensure a full risk allocation among institutions. Applying our methodology to a panel of 54–86 of the world’s major commercial banks for a 13-year time span with monthly frequency not only allows us to closely match the list of G-SIBs; we can also use individual risk contributions to compute bank-specific surcharges: systemic capital charges as well as countercyclical buffers. We therefore address both dimensions of systemic risk – cross-sectional and time-series – in a single integrated approach. As the analysis of risk drivers confirms, the main focus of macroprudential supervision should be on a solid capital base throughout the financial cycle and de-correlation of banks’ asset values.