Time Variation in Mutual Fund Style Exposures

Despite the wide acceptance of return-based style analysis,the method has several limitations. One important drawback isthe assumption that style exposures are time-invariant. We applyresults on break tests developed in Bai and Perron (1998, 2003)to test for style breaks. We find strong evidence against thehypothesis of constant time exposures in daily return data forEuropean equity funds. All funds exhibit at least one break,and 60% exhibit more than one break. We show that the main reasonfor style breaks is the mutual funds' reliance on conditionalinvestment strategies based on public information and volatilityestimates.     

Cultural dimensions in management and planning

The nature of management skills is such that they are culturally specific: a management technique or philosophy that is appropriate in one national culture is not necessarily appropriate in another. The paper describes the scope of (work-related) cultural differences as they were revealed by research in more than 50 countries around the world and discusses how these differences affect the validity of management techniques and philosophies in various countries within the functioning and meaning of planning.The author is with the Institute for Research on Intercultural Cooperation, the Netherlands. This paper is a shorter version of the first part of a report MAN DEV/28. Culture and Management Development, written on behalf of the UNDP/ILO Interregional Project Co-operation among Management Development Institutions and published by the International Labour Office, Management Development Branch, Training Department, Geneva 1983.     

Stock and bond returns with Moody Investors

We present a tractable, linear model for the simultaneous pricing of stock and bond returns that incorporates stochastic risk aversion. In this model, analytic solutions for endogenous stock and bond prices and returns are readily calculated. After estimating the parameters of the model by the general method of moments, we investigate a series of classic puzzles of the empirical asset pricing literature. In particular, our model is shown to jointly accommodate the mean and volatility of equity and long term bond risk premia as well as salient features of the nominal short rate, the dividend yield, and the term spread. Also, the model matches the evidence for predictability of excess stock and bond returns. However, the stock–bond return correlation implied by the model is somewhat higher than that in the data.     

Networking as a Means to Strategy Change: The Case of Open Innovation in Mobile Telephony

The purpose of this article is to investigate how innovation networks can be used to deal with a changing technological environment. This study combines different concepts related to research and development (R&D) collaboration strategies of large firms and applies these concepts to R&D alliance projects undertaken by Nokia Corporation in the period 1985–2002. The research methodology is a combination of in‐depth semistructured interviews and a large‐scale quantitative analysis of alliance agreements. For the empirical analysis a distinction is made between exploration and exploitation in innovation networks in terms of three different measures. As a first measure, the difference between exploration and exploitation strategies by means of the observed capabilities of the partners of the contracting firms is investigated. The second measure is related to partner turnover. The present article argues that in exploration networks partner turnover will be higher than in exploitation networks. As a third measure, the type of alliance contract will be taken; exploration networks will make use of flexible legal organizational structures, whereas exploitation alliances are associated with legal structures that enable long‐term collaboration. The case of Nokia has illustrated the importance of strategic technology networks for strategic repositioning under conditions of change. Nokia followed an exploitation strategy in the development of the first two generations of mobile telephony and an exploration strategy in the development of technologies for the third generation. Such interfirm networks seem to offer flexibility, speed, innovation, and the ability to adjust smoothly to changing market conditions and new strategic opportunities. These two different strategies have led to distinctly different international innovation networks, have helped the company in becoming a world leader in the mobile phone industry, and have enabled it to sustain that position in a radically changed technological environment. This study also illustrates that Nokia effectively uses an open innovation strategy in the development of new products and services and in setting technology standards for current and future use of mobile communication applications. This article presents one of the first longitudinal studies, which describes the use of innovation networks as a means to adapt swiftly to changing market conditions and strategic change. This study contributes to the emerging, but still inconsistent, literature on explorative and exploitative learning by means of strategic technology networks.     

Worker turnover at the firm level and crowding out of lower educated workers

This paper investigates whether employers exploit cyclical downturns to improve the average skill level of their work force. We use a unique dataset that contains information on workers, jobs as well as firm characteristics. Our findings are that at each job level mainly lower educated workers leave during downturns. Furthermore, at each level of job complexity, workers with a higher education are not more productive than lower educated workers. We find no evidence that higher educated workers crowd out lower educated workers during recessions.     

The role of entrepreneurship education as a predictor of university students’ entrepreneurial intention

Using Ajzen’s theory of planned behavior and Shapero’s entrepreneurial event model as well as entrepreneurial cognition theory, we attempt to identify the relationship between entrepreneurship education, prior entrepreneurial exposure, perceived desirability and feasibility, and entrepreneurial intentions (EI) for university students. The data were collected from a survey of ten universities; we received 494 effective responses. We used probit estimation to show that perceived desirability significantly impacts EI whereas there is no significant impact from perceived feasibility. There is a significant negative impact from exposure (which is surprising) and a significant positive impact from entrepreneurship education. Males and people from technological universities and/or backgrounds have higher EI than females and people from other universities and backgrounds. There are also significant positive interactive effects by gender, university type, and study major on the relationship between entrepreneurship education and EI.     

Non-Discrimination in Human Resources Management as a Moral Obligation

The purpose of socially responsible investing (SRI) is to: (1) allow investors to reflect their personal values and ethics in their choices, and (2) encourage companies to improve their ethical, social, and environmental performance. In order to achieve these ends, the means SRI fund managers employ include the use of negative screening, or the exclusion of companies involved in “sinful” industries. We argue that there are problems with this methodology, both at a theoretical and at a practical level. As a consequence, current SRI offerings cannot accurately reflect the values and ethical beliefs they propose to represent. Moreover, the use of a?priori criteria is potentially misleading, as we show by discussing examples of glue and wine making. Applying this flawed approach SRI funds fail to influence the direction of the firms they deem most in need of re-directing. Rather than engaging in the simple a?priori assumption that some industries are “saints” while others are “sinners” (Freeman, 2007) we suggest a new framework upon which the SRI screening methodology could be grounded. Embracing the philosophical tradition of American pragmatism, we suggest that SRI methodology could be improved by engaging in an analysis based on (1) the actual impacts of the company’s products and services, (2) the company’s relationships with its specific, real stakeholders, and (3) the contingent environment (social, economic, political, legal, and cultural) in which the business operates.     

The European Union,the Euro,and equity market integration

We use industry valuation differentials across European countries to study the impact of membership in the European Union as well as the Eurozone on both economic and financial integration. In integrated markets, discount rates and expected growth opportunities should be similar within one industry, irrespective of the country, implying narrowing valuation differentials as countries become more integrated. Our analysis of the 1990–2007 period shows that membership in the EU significantly lowered discount rate and expected earnings growth differentials across countries. In contrast, the adoption of the Euro was not associated with increased integration. Our results do not change when the sample is extended to include the recent crisis period.     

Collaborative Strategies in the Event of Technological Discontinuities: The Case of Nokia in the Mobile Telecommunication Industry

The paper examines the extent to which collaboration between large and small companies has been able to deal with the effects of discontinuous technological change. In applying an evolutionary perspective, the paper examines the process by which technological competencies and resources of large firms evolve and its effects on the characteristics of their collaboration with smaller companies. In focusing on the issue of complementary between local and international sourcing of capabilities and resources in the mobile telecommunication industry, it combines an empirical analysis of the structure of Finnish Science Parks with an examination of internationalisation strategies of large Finnish companies. The papershows that Nokia has increasingly become engaged in sourcing capabilities internationally, this might, however, pose some long-term problems for the local embeddedness of the company in Finland.     

Analysts' forecast error: a robust prediction model and its short‐term trading profitability

This paper contributes to the empirical evidence on the investment horizon salient to trading based on predicting the error in analysts' earnings forecasts. An econometric framework is proposed that accommodates the stylized fact of extreme values in the forecast error series. We find that between 1998 and 2010, the strategy of taking a long (short) position in stocks with the most pessimistic (optimistic) I/B/E/S forecast has an annual risk‐adjusted return of 16.56 per cent before transaction costs. The robust method used to predict this pessimism (optimism) and the one‐week investment horizon are the key drivers of the strategy's profitability.