This study analyzed the relationship between social capital and knowledge creation at the individual level. Our limited theory of knowledge creation encompasses the number and strength of the relationships that a person maintains. Hypothesis tests in a sample of biomedical research scientists strongly supported predictions. As relationships increased in number, returns to knowledge creation diminished. Increased interactions with a single other showed a similar effect. The strength of interpersonal relations had a higher marginal effect on knowledge creation than the number of relations.

K nowledge creation requires the combination and exchange of diverse and overlapping knowledge inputs as individuals interact with exchange partners to create new knowledge. In this study, we examine knowledge creation among university research scientists as a function of their professional (ego) networks-those others with whom they collaborate for the purpose of creating new knowledge. We propose that knowledge creation relies, in part, on two attributes of a researcher's professional network structure-average tie strength and ego network density-and we provide insights into how these attributes jointly affect knowledge creation. Our study of over 7,300 scientific publications by 177 research scientists working with more than 14,000 others over an 11-year period provides evidence that the relationship between a research scientist's professional network and knowledge creation depends on both ego network density and average tie strength. Our evidence suggests that both attributes affect knowledge creation. Moreover, average tie strength interacts with density to affect knowledge creation such that researchers who maintain mostly strong ties with research collaborators who themselves comprise a sparse network have the highest levels of new knowledge creation.

Sexual harassment (SH) is a continuing, chronic occupational health problem in organizations and work environments. First addressed in the Journal of Occupational Health Psychology through a 1998 Special Section on Sexual Harassment, we return to this consequential issue. If the goal is to reduce SH in organizations, and we believe that it should be, then a key question is whether we have made progress in 2 decades. The answer is mixed. Yes, there is a 28% decline in SH complaints. No, there is an increase in complaints by males. No, there has been an increase in the percentage of merit resolutions and monetary benefits. Maybe, because how do we explain the complexity of SH with emergent gay, lesbian, and transgender workforce members. One persistent problematic aspect of SH lack of agreement on definition. We address 2 of the 3 definitional approaches. We consider the broad, negative consequences for organizations and for individual victims. Harassers and aggressors destroy lives, leaving long legacies of suffering. In addition, we offer some suggestions for moving forward in science and practice, with emphasis on the role of the bystander. We conclude that SH is a preventable, if not always predictable, occupational health problem. (PsycINFO Database Record

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The effective holding and management of liquid assets is critical to success in research‐intensive industries. The primary output of invention is new knowledge. However, because of its ‘sticky’ characteristics, knowledge may not easily diffuse to external shareholders, leading to knowledge asymmetries between managers/employees and external suppliers of capital. Many valuable R&D projects may thus fail to attract external financing, limiting a firm's ability to invest in R&D. In this study, we examine how the cash flow and signaling properties of a firm's patents and certain aspects of its alliance strategy can attenuate such problems. Specifically, we suggest that a firm's R&D investments positively predict the level of its liquid asset holdings. This is due to the fact that invention‐induced knowledge asymmetries increase the firm's cost of accessing external liquid capital. However, holding cash entails opportunity costs. In this regard, we also find that patent production and certain alliance activities provide important signaling mechanisms, which reduce knowledge asymmetries between the firm and capital markets, and consequently lower the firm's need to hold liquid assets. Empirical tests were conducted using a sample of 108 U.S‐based biotechnology firms. Copyright © 2009 John Wiley & Sons, Ltd.