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Speaking Up in the Operating Room: How Team Leaders Promote Learning in Interdisciplinary Action Teams 总被引:14,自引:0,他引:14
Amy C. Edmondson 《Journal of Management Studies》2003,40(6):1419-1452
ABSTRACT This paper examines learning in interdisciplinary action teams. Research on team effectiveness has focused primarily on single-discipline teams engaged in routine production tasks and, less often, on interdisciplinary teams engaged in discussion and management rather than action. The resulting models do not explain differences in learning in interdisciplinary action teams. Members of these teams must coordinate action in uncertain, fast-paced situations, and the extent to which they are comfortable speaking up with observations, questions, and concerns may critically influence team outcomes. To explore what leaders of action teams do to promote speaking up and other proactive coordination behaviours – as well as how organizational context may affect these team processes and outcomes – I analysed qualitative and quantitative data from 16 operating room teams learning to use a new technology for cardiac surgery. Team leader coaching, ease of speaking up, and boundary spanning were associated with successful technology implementation. The most effective leaders helped teams learn by communicating a motivating rationale for change and by minimizing concerns about power and status differences to promote speaking up in the service of learning. 相似文献
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Do the Merits Matter More? The Impact of the Private Securities Litigation Reform Act 总被引:2,自引:0,他引:2
Johnson Marilyn F.; Nelson Karen K.; Pritchard AC 《Jnl. of Law, Economics, and Organization》2007,23(3):627-652
This article examines the effect of the Private Securities LitigationReform Act of 1995 (PSLRA) on stockholder lawsuits. We explorethe role of restatements, earnings forecasts, and insider tradingin the filing and resolution of lawsuits for a sample of hightechnology firms. Consistent with our predictions, there isa post-PSLRA shift away from litigation based on forward-lookingearnings disclosures. Conversely, there is a significantly greatercorrelation between litigation and both earnings restatementsand abnormal insider selling after the PSLRA. Finally, we finda post-PSLRA increase in the likelihood of settlement for casesinvolving earnings restatements. 相似文献
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When are contrarian profits due to stock market overreaction? 总被引:30,自引:0,他引:30
If returns on some stocks systematically lead or lag those ofothers, a portfolio strategy that sells 'winners' and buys 'losers'can produce positive expected returns, even if no stock's returnsare negatively autocorrelated as virtually all models of overreactionimply. Using a particular contrarian strategy we show that,despite negative autocorrelation in individual stock returns,weekly portfolio returns are strongly positively autocorrelatedand are the result of important cross-auto-correlations. Wefind that the returns of large stocks lead those of smallerstocks, and we present evidence against overreaction as theonly source of contrarian profits. 相似文献
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Stock market prices do not follow random walks: evidence from a simple specification test 总被引:49,自引:0,他引:49
In this article we test the random walk hypothesis for weeklystock market returns by comparing variance estimators derivedfrom data sampled at different frequencies. The random walkmodel is strongly rejected for the entire sample period (1962-1985)and for all subperiods for a variety of aggregate returns indexesand size-sorted portfolios. Although the rejections are duelargely to the behavior of small stocks, they cannot be attributedcompletely to the effects of infrequent trading or time-varyingvolatilities. Moreover, the rejection of the random walk forweekly returns does not support a mean-reverting model of assetprices. 相似文献
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John Edmondson 《Telecommunications Policy》1979,3(3):252-254
The Institute for the Future is engaged in a project to explore effective and affordable uses of telecommunications systems to benefit developmentally disabled children and adults. The two-year study, funded by the Rehabilitation Services Administration of the US Department of Helath, Education and Welfare, began on 1 October 1978 under the overall leadership of the Alternate Media Center at New York Univerity. The Pediatric Service of Roosevelt Hospital in New York City and the American Association of University Affiliated Programs1 in Washington DC make up the rest of the project team. 相似文献
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ABSTRACT Predictive microbiology has been developed utilizing accurate and versatile mathematical models to predict microbial behavior during food processing instead of using traditional microbiological methods. Generally, mathematical models are classified into three types: primary, secondary, and tertiary models. Secondary model deals with the response of parameters appearing in primary modeling approaches as functions of one or more environmental conditions like temperature, pH, etc. Most of them have little or no microbiological basis, which makes interpretation of some model parameters difficult and sometimes their performance is not stable. This paper reviews the performance and development of secondary models and discusses their strengths and weaknesses, which may help future model development and application. 相似文献
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Edmondson AC 《Harvard business review》2011,89(4):48-55, 137
Many executives believe that all failure is bad (although it usually provides Lessons) and that Learning from it is pretty straightforward. The author, a professor at Harvard Business School, thinks both beliefs are misguided. In organizational life, she says, some failures are inevitable and some are even good. And successful learning from failure is not simple: It requires context-specific strategies. But first leaders must understand how the blame game gets in the way and work to create an organizational culture in which employees feel safe admitting or reporting on failure. Failures fall into three categories: preventable ones in predictable operations, which usually involve deviations from spec; unavoidable ones in complex systems, which may arise from unique combinations of needs, people, and problems; and intelligent ones at the frontier, where "good" failures occur quickly and on a small scale, providing the most valuable information. Strong leadership can build a learning culture-one in which failures large and small are consistently reported and deeply analyzed, and opportunities to experiment are proactively sought. Executives commonly and understandably worry that taking a sympathetic stance toward failure will create an "anything goes" work environment. They should instead recognize that failure is inevitable in today's complex work organizations. 相似文献
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This article is a meta-analytic study examining the moderating effect the boundary spanning role has on the relationship between perceived supervisory support (PSS) and other important constructs within the marketing domain, including: job satisfaction, organizational commitment, performance, and turnover intentions. There was a positive relationship between PSS and every construct except turnover intentions, which was negative. Along with this, three out of the four relationships were stronger for boundary spanners as compared to non-boundary spanners. Overall, managers aimed at meeting organizational objectives (e.g. performance; turnover) should provide supervisory support to boundary spanning employees. 相似文献