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Theory predicts that balancing exploratory and exploitative learning (i.e., ambidexterity) across alliance portfolio domains (e.g. value chain function, governance modes) increases firm performance, whereas balance within domains decreases performance. Prior empirical work, however, only assessed balance/imbalance within and across two domains. The purpose of this study is to determine if theory generalizes beyond specific domain combinations. The authors investigated across multiple domains to determine whether alliance portfolios should be imbalanced toward exploration or exploitation within domains or balanced across domains. The authors also extended prior research by exploring whether the direction of imbalance matters. Current theory only advises managers to accept imbalance without helping with the choice between exploration and exploitation.

Hypotheses are tested using fixed-effects generalized least squares (GLS) regression analysis of a large 13-year panel sample of Fortune 500 firms from 1996 to 2008.

With respect to the balance between exploration and exploitation within each of the five domains investigated, imbalanced alliance portfolios had higher firm performance. No evidence was found that balance across domains relates to performance. Instead, for four of the five domains, imbalance toward exploration related positively to firm performance.

An alliance portfolio that allows for exploration in some domains and exploitation in other domains appears more difficult to implement than prior theory suggests. Firms benefit mostly from using the alliance portfolio for exploratory learning.

Although employee race has been an actively investigated area of scientific inquiry for decades, a thorough and informed understanding of the role of race in the organizational sciences has eluded us for a number of reasons. The relationship of race and stress in organizations is a prime example of this neglect and deficiency in our knowledge base, as little work has been done in this area. We attempt to address this limitation in the literature by proposing an inductively derived, review-centric framework that attempts to articulate the multiple intermediate linkages that explain the process dynamics taking place in the relationship between employee race and health and well-being in organizations. We argue that socialization processes, social networks, information and resource access, and mentoring contribute to distance and differences between racial minorities and nonminorities concerning control, reputation, performance, and political understanding and skill, which in turn, creates barriers to success, and increased stress and strain for racial minorities. The implications of this framework along with directions for future theory and research are discussed in this chapter.

This study demonstrates how becoming a high-reliability institution in health care is a priority, given the high-risk environment in which an error can result in harm. Literature conceptually supports the need for highly reliable health care facilities but does not show a comprehensive approach to operationalizing the concept into the daily workforce to support patients. The Veterans Health Administration closes the gap by documenting a case study that not only demonstrates specific actions and functions that create a high-reliability organization (HRO) for safety and improvement but also created a learning organization by spreading the knowledge to other facilities.

The authors instituted a methodology consisting of assessments, training and educational simulations to measure, establish and operationalize activities that identified and prevented harmful events. Visual communication boards were created to facilitate team huddles and discuss improvement ideas. Improvements were then measured and analyzed for purposeful outcomes and return on investment (ROI).

HRO can be operationalized successfully in health care systems. Measurable outcomes verified that psychological safety was achieved through the identification and participation of 3,184 process improvement projects over a five-year period, which yielded a US$2.8m ROI. Documented processes and activities were used for educational teachings, which were disseminated to other Veteran Affairs Medical Center’s through the Truman HRO Academy.

This case study is limited to one hospital in the Veterans Health Administration (VHA) network. As the VHA continues to deploy the methods outlined to other hospitals, the authors will perform incremental data collection and ongoing analysis for further validation of the HRO methods and operations. Hospitalists can adapt the methods in the case study for practical application in a health care setting outside of VHA. Although the model is rooted in health care, the methods may be adapted for use in other industries.

This case study overcomes the limitations within literature regarding operationalizing HRO by providing actual activities and demonstrations that can be implemented by other health care facilities.

Barriers to employment are a significant issue in the United States and abroad. As civil rights legislation continues to be enforced and as employers seek to diversify their workplaces, it is incumbent upon the management field to offer insights that address obstacles to work. Although barriers to employment have been addressed in various fields such as psychology and economics, management scholars have addressed this issue in a piecemeal fashion. As such, our review will offer a comprehensive, integrative model of barriers to employment that addresses both individual and organizational perspectives. We will also address societal-level concerns involving these barriers. An integrative perspective is necessary for research to progress in this area because many individuals with barriers to employment face multiple challenges that prevent them from obtaining and maintaining full employment. While the additive, or possibly multiplicative, effect of employment barriers have been acknowledged in related fields like rehabilitation counseling and vocational psychology, the Human Resource Management (HRM) literature has virtually ignored this issue. We discuss suggestions for the reduction or elimination of barriers to employment. We also provide an integrative model of employment barriers that addresses the mutable (amenable to change) nature of some barriers, while acknowledging the less mutable nature of others.

Although established theoretical models suggest that race differences in physical health are partially explained by exposures to environmental toxins, there is little empirical evidence to support these processes. We build on previous research by formally testing whether black–white differences in self-rated physical health are mediated by the embodiment of environmental toxins.

Using cross-sectional data from the National Health and Nutrition Examination Surveys (2007–2008), we employ ordinary least squares regression to model environmental toxins (from urine specimens) and overall self-rated health as a function of race and ethnicity. We employ the Sobel test of indirect effects to formally assess mediation.

Our results show that non-Hispanic black respondents tend to exhibit higher levels of total toxins, lead, and cadmium in their urine and poorer physical health than non-Hispanic whites, even with adjustments for age, gender, and socioeconomic status (SES). Our mediation analyses suggest that blacks may exhibit poorer physical health than whites because they tend to embody higher levels of cadmium.

Research limitations include cross-sectional data and restricted indicators of SES.

This study contributes to previous work by bridging the fields of social epidemiology and environmental inequality and by formally testing established theoretical models.