R&D employment effects of financial slack generated by R&D tax exemption: The importance of firm-level contingencies

This paper focuses on R&D employment effects due to financial slack generated by an R&D tax exemption scheme in Belgium. The tax exemption is granted without firm-level requirements, which facilitates testing firm-level contingencies on the influence of the generated financial slack. We find that R&D employment effects increase with the level of the R&D tax exemption related to financial slack resources and that this positive relation is more outspoken for older firms and for firms with an intermediate share of R&D tax exemptions in the overall mix of R&D policy support. No effects are found for firm size and its R&D intensity. These findings suggest targeting the R&D tax exemption support according to firm characteristics to obtain longer term R&D employment effects. The focus on R&D employment adds to the literature on the evaluation of R&D policies which is largely oriented toward R&D expenditure and innovation outputs.     

Diversification benefits of commodity futures

The finance literature seems to be in support of the diversification benefits of adding commodity futures to an existing portfolio. Yet no empirical work has been performed to test whether the benefits are indeed statistically significant. This paper addresses several unresolved issues concerning the potential diversification benefits of commodities. First, we attempt to ascertain whether the alleged diversification benefits exist and are statistically significant. Second, to what extent are the diversification benefits unique to US investors? Would investors of a resource-based economy like Canada also benefit from adding commodities to their portfolios? Third, recent studies indicate that correlations among international equity returns are higher during bear markets than during bull markets. This type of regime-switching correlation behavior will mean lower diversification benefits from international investments when investors face a bearish environment at home. Do commodity futures display the same type of regime-switching behavior? To what extent do commodity futures offer real diversification benefits that are robust over time and across regimes? Finally, commodities may appear to be an asset for the more adventurous investors with higher risk tolerance. We want to know what type of investors should hold commodities. We demonstrate that the diversification benefit of commodities is a far more complex phenomenon than often understood in the finance literature.     

Predicting credit spreads

Predictions of firm-level credit spreads based on the current spot and forward credit spreads can be significantly improved upon by using the information contained in the shape of the credit-spread curve. However, the current credit-spread curve is not a sufficient statistic for predicting future out-of-sample credit spreads; predictions can be significantly improved upon by exploiting the information contained in the shape of the riskless yield curve. In the presence of credit-spread and riskless factors, other macroeconomic, marketwide, and firm-specific risk variables do not significantly improve predictions of credit spreads. These results have important implications for credit-spreads modeling as well as for better understanding corporate capital structure and risk management policies.     

Hedging variance options on continuous semimartingales

We find robust model-free hedges and price bounds for options on the realized variance of [the returns on] an underlying price process. Assuming only that the underlying process is a positive continuous semimartingale, we superreplicate and subreplicate variance options and forward-starting variance options, by dynamically trading the underlying asset and statically holding European options. We thereby derive upper and lower bounds on values of variance options, in terms of Europeans.     

Monitoring the future. Building an early warning system for the Dutch Ministry of Justice

To determine the sustainability of the policy, an Early Warning System (EWS) has been developed for the Dutch Ministry of Justice. An EWS is used to monitor various developments and to place them within the perspective of future scenarios. Without actually predicting the future, this makes it possible to determine which scenario is the most relevant at any given moment, allowing the department to adapt its policies. Regular modifications to the EWS make it possible to monitor in the direction of which scenario society appears to be moving. This creates a path to the future with which the sustainability of (new) policies can be tested periodically.     

Job Anxiety,Work‐Related Psychological Illness and Workplace Performance

This article uses matched employee–employer data from the British Workplace Employment Relations Survey to examine the relationship between employee psychological health and workplace performance in 2004 and 2011. Using two measures of work‐related psychological health — namely employee‐reported job anxiety and manager‐reported workforce stress, depression and anxiety — we find a positive relationship between psychological ill‐health and absence, but not quits. The association between psychological ill‐health and labour productivity is less clear, with estimates sensitive to sector, time period and the measure of psychological health. The 2004–2011 panel is further used to explore the extent to which change in psychological health is related to change in performance.     

Competition,Prices and Quality in the Market for Physician Consultations

Prices for consultations with General Practitioners (GP's) in Australia are unregulated, and patients pay the difference between the price set by the GP and a fixed reimbursement from the national tax‐funded Medicare insurance scheme. We construct a Vickrey‐Salop model of GP price and quality competition and test its predictions using individual GP‐level data on prices, the proportion of patients who are charged no out‐of‐pocket fee, average consultation length, and characteristics of the GP's, their practices and their local areas. We measure the competition to which the GP is exposed by the distance to other GP practices and allow for the endogeneity of GP location decisions with measures of area characteristics and area fixed‐effects. Within areas, GP's with more distant competitors charge higher prices and a smaller proportion of their patients make no out‐of‐pocket payment. GP's with more distant competitors also have shorter consultations, though the effect is small and statistically insignificant.     

重新发现IT外包

IT业务外包已成为越来越普遍的现象,然而,企业从外包中获得好处的愿望能否成真?企业的商务环境是否发生了彻底变化?BCG专家经过研究认为,如果你对上述任一问题的答案是肯定的,那现在就到了你对上一次IT外包举措进行批判性审视的时候了。     

Management strategies in the Czech telecommunications sector: a comparative study of Český Telecom and T-Mobile

This article compares employment relations (ER) strategies at the incumbent fixed line Czech telecommunications company (TelCo), ?eský Telecom (?T), and the T-Mobile subsidiary, T-Mobile Czech Republic (TMCZ). It considers the extent to which the firms were able to introduce Western-style HRM practices within the context of three changing dynamics. First, the collapse of communism in the former Czechoslovakia was followed by rapid economic liberalization and privatization in the Czech Republic. Second, telecommunications sectors worldwide were subject to deregulation and the rapid diffusion of new technologies. Third, fixed line and mobile TelCos were subject to differing challenges and opportunities. The article uses path dependency, institutionalist and strategic human resource management (SHRM) related theories to assist in this analysis. It concludes that by 2005 the introduction of Western-style HRM practices into the Czech telecommunications sector appeared less constrained by former institutional and historical constraints. TMCZ's ER policies were further influenced by its parent firm's transnational strategies that sought to coordinate better its subsidiaries and create a ‘global’ brand. Despite the differing circumstances of the fixed line and mobile sectors, by 2005 ER practices and strategies at the two firms were to an extent converging, as ?T continued to cut costs and TMCZ adjusted its strategies to better accommodate a saturated market. Given these changes the article postulates that the Czech telecommunications sector has now shifted towards a mature transformation stage, as ER strategies increasingly reflect Western-based SHRM practices and concepts.