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Product design and marketing mix decisions for segmented markets depend crucially on the correct specification of marketing models used as input to these decisions. With real-world data, the true number of segments in a market is unknown. Current evidence from simulation studies suggests that the accuracy of commonly used criteria for determining the number of segments in a market depends on the usage context, including the type of distribution being used to describe the data, the model specification, and the characteristics of the market. This study investigates via simulation the performance of seven segment retention criteria used with finite mixture regression models for normal data. This is one of the most important analysis contexts in marketing research since regression models are used, for example, in conjoint analysis and market response analysis, yet no previous study in either the marketing or statistics literatures explores the segment retention problem for mixture regression models. The study shows that one criterion, Akaike's Information Criterion (AIC) with a per-parameter penalty factor of 3 (AIC3), is clearly the best criterion to use across a wide variety of model specifications and data configurations, having the highest success rate and producing very low parameter bias. Currently, this criterion is rarely, if ever, used in the marketing literature. 相似文献
73.
Rick Molz 《Journal of Business Ethics》1995,14(10):789-804
The concept of pluralism in corporate governance is stated as an emergent theory. Grounded in the concept of enhancing the input of various stakeholders and lessening the control of managers in corporate governance, the theory is the foundation of proposed legal changes in corporate governance and the board of directors. While more pluralistic control has been conceptually linked to improved social performance of the firm, this proposition is not supported in an empirical investigation.Rick Molz' main area of research is in strategic response to public policy initiatives. He has had articles published inColumbia Journal of World Business, Management International Review, The Journal of Business Research, Long Range Planning, The Journal of Business Strategy, andThe Journal of Business Ethics, as well as chapters and cases in several edited volumes. 相似文献
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Drawing on primary and secondary sources the authors argue that the JIT/TQM manufacturing system intensifies work as a result of increased surveillance and monitoring of workers' activities, heightened responsibility and accountability, the harnessing of peer pressure within 'teams' and via 'customers', and the fostering of 'involvement' in waste elimination and the continuous improvement of the production process. 相似文献
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Rick Delbridge Keith Whitfield 《International Journal of Human Resource Management》2013,24(12):2166-2181
This paper explores the use of the British Workplace Employment Relations (WERS) survey data in HRM research. While the WERS surveys contain much material of relevance to key debates in the HRM area, there is a prima facie case that there has not been as much WERS-based research in the HRM area as might have been consequently expected. This paper examines why this might be the case, and considers the prospects for the further use of WERS data by HRM researchers. While noting the limits of survey data to address key questions in the area, it suggests that there is a need for a programme of research that builds upon the valuable insights that can be obtained from WERS-based research by the complementary generation of more context-rich information via focused case studies and associated qualitative research. 相似文献
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Children's National Medical Center's approach to preventing denials and managing response to audits includes the following: Mapping out problem areas in the claims submission process and developing solutions with the help of a multidisciplinary team. Using case managers to help prevent denials and assist in the appeal of rejected claims. Requesting oral reconsideration of pended claims and supporting attending physicians in orally responding to the payer's medical team regarding the case. 相似文献
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This paper comments on a paper by Lancaster and Lancaster ‘The economics of tobacco advertising: spending, demand, and the effect of bans’, published in the International Journal of Advertising, 22(1). In their response, the authors specifically tackle comments made on their method of meta-analysis. 相似文献