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61.
Kurt Lewin and the Planned Approach to Change: A Re-appraisal 总被引:3,自引:0,他引:3
Bernard Burnes 《Journal of Management Studies》2004,41(6):977-1002
abstract The work of Kurt Lewin dominated the theory and practice of change management for over 40 years. However, in the past 20 years, Lewin's approach to change, particularly the 3-Step model, has attracted major criticisms. The key ones are that his work: assumed organizations operate in a stable state; was only suitable for small-scale change projects; ignored organizational power and politics; and was top-down and management-driven. This article seeks to re-appraise Lewin's work and challenge the validity of these views. It begins by describing Lewin's background and beliefs, especially his commitment to resolving social conflict. The article then moves on to examine the main elements of his Planned approach to change: Field Theory; Group Dynamics; Action Research; and the 3-Step model. This is followed by a brief summary of the major developments in the field of organizational change since Lewin's death which, in turn, leads to an examination of the main criticisms levelled at Lewin's work. The article concludes by arguing that rather than being outdated or redundant, Lewin's approach is still relevant to the modern world. 相似文献
62.
Fernando Tavares Pereira Author Vitae José Rui Figueira Author Vitae Bernard Roy Author Vitae 《Socio》2009,43(1):72-88
Planning as part of public sector decision-making situations is an activity of critical importance, with direct relevance for urban planners. The ramifications of such decisions generally have significant effect on peoples’ lives. The current paper deals with the comparison between territorial maps in the context of districting problems with a strong socio-economic component. The theoretical problem involves the comparison of two partitions in a connected, undirected, and planar graph. In considering this problem, we introduce three new indices to compare territory partitions: compatibility, inclusion, and distance, all of which have importance for real-world planning situations. Numerical experiments of these indices were carried out for the communes network in (Iˆle de France), France. 相似文献
63.
This paper considers finite sample motivated structural change tests in the multivariate linear regression model with application to energy demand models, in which case commonly used structural change tests remain asymptotic. As in Dufour and Kiviet [1996. Exact tests for structural change in first-order dynamic models. Journal of Econometrics 70, 39–68], we account for intervening nuisance parameters through a two-stage maximized Monte Carlo test procedure. Our contributions can be classified into five categories: (i) we extend tests for which a finite-sample theory has been supplied for Gaussian distributions to the non-Gaussian context; (ii) we show that Bai et al. [1998. Testing and dating common breaks in multi-variate time series. The Review of Economic Studies 65 (3), 395–432] test severely over-rejects and propose exact variants of this test; (iii) we consider predictive break test approaches which generalize tests in Dufour [1980. Dummy variables and predictive tests for structural change. Economics Letters 6, 241–247] and Dufour and Kiviet [1996. Exact tests for structural change in first-order dynamic models. Journal of Econometrics 70, 39–68]; (iv) we propose exact (non-Bonferonni based) extensions of the multivariate outliers test from Wilks [1963. Multivariate statistical outliers. Sankhya Series A 25, 407–426] to models with covariates; (v) we apply these tests to the energy demand system analyzed by Arsenault et al. [1995. A total energy demand model of Québec: forecasting properties. Energy Economics 17 (2), 163–171]. For two out of the six industrial sectors analyzed over the 1962–2000 period, break and further goodness-of-fit and diagnostic tests allow to identify (and correct) specification problems arising from historical regulatory changes or (possibly random) industry-specific effects. The procedures we propose have potential useful applications in statistics, econometrics and finance (e.g. event studies). 相似文献
64.
While using financial incentives to increase fertility has become relatively common, the effects of such policies are difficult to assess. We propose an identification strategy that relies on the fact that the variation in wages induces variation in benefits and tax credits among ‘comparable’ households. We implement our approach by estimating a discrete‐choice model of female participation and fertility using individual data from the French Labor Force Survey and a detailed representation of the French tax–benefit system. Our results suggest that financial incentives have had a significant effect on fertility decisions in France. As an example, we simulate the effects of an additional, unconditional child credit of 150 euros per month. The effects are strongest for the third child. Copyright © 2013 John Wiley & Sons, Ltd. 相似文献
65.
A bstract . Ethics and ethical thinking involve two primary and interdependent elements of analysis: the individual and the society. Economic thought dichotomized these two elements into the individual (competitive capitalism ) or the society (Marxist socialism ), with one element being the cause, and the other the effect. Views of economic reality were developed not on the basis of the interdependence of the individual and the society but their mutual antagonism.
Economic thought is based on the scientific reasoning of the seventeenth and eighteenth centuries. Its abstract definition of reality narrowed the significance of the concrete appearances of things in favor of the rules (science) that define things. Science requires both an objective causal order (independent of human definitions and beliefs) and the development of laws (independent of the human observer or participant) that explain the nature of the objective world. Ethical reasoning requires that economic causality be defined to include both the individual and the society. Ethical reasoning is needed to bring together both the scientific and the metaphysical for human meaning. The science of means must be joined to the human purposes of ends. 相似文献
Economic thought is based on the scientific reasoning of the seventeenth and eighteenth centuries. Its abstract definition of reality narrowed the significance of the concrete appearances of things in favor of the rules (science) that define things. Science requires both an objective causal order (independent of human definitions and beliefs) and the development of laws (independent of the human observer or participant) that explain the nature of the objective world. Ethical reasoning requires that economic causality be defined to include both the individual and the society. Ethical reasoning is needed to bring together both the scientific and the metaphysical for human meaning. The science of means must be joined to the human purposes of ends. 相似文献
66.
Arne Bigsten Paul Collier Stefan Dercon Bernard Gauthier Jan Willem Gunning ers Isaksson Abena Oduro Remco Oostendorp Cathy Pattilo Mans Soderbom Michel Sylvain Francis Teal & Albert Zeufack 《Oxford bulletin of economics and statistics》1999,61(4):489-512
Firm level data for the manufacturing sector in Africa, presented in this paper, shows very low levels of investment. The importance of profit effects on investment is investigated using a flexible accelerator, a specification based on the Euler equation and a simple generalisation of these specificiations. There are controls for firm fixed effects. It is shown that the profit effect is very similar for both the accelerator and Euler equation specifications. A comparison with other studies shows that, for small firms, the effect is much smaller in Africa than for other countries. Reasons for the relative insensitivity of investment to profits in African firms are suggested. For the most general specification tested there are no significant differences in the size of the profit effect across the four countries in the study. 相似文献
67.
We consider a two-date model of a financial exchange economy with finitely many agents having nonordered preferences and portfolio constraints. There is a market for physical commodities at any state today or tomorrow and financial transfers across time and across states are allowed by means of finitely many nominal assets or numéraire assets. We prove a general existence result of equilibria for such a financial exchange economy in which portfolios are defined by linear constraints, extending the framework of linear equality constraints by Balasko et al. (1990), and the existence results in the unconstrained case by Cass (1984, 2006), Werner (1985), Duffie (1987), and Geanakoplos and Polemarchakis (1986). Our main result is a consequence of an auxiliary result, also of interest for itself, in which agents’ portfolio constraints are defined by general closed convex sets and the financial structure is assumed to satisfy a “nonredundancy-type” assumption, weaker than the ones in Radner (1972) and Siconolfi (1989). 相似文献
68.
This paper examines Darity's model of gender-segregated low-income agrarian society in light of evidence from Uganda. It identifies three important features of the interactions between men and women which are likely to have economic effects but which are subsumed within Darity's schematic presentation. It suggests a reformulation of the Darity model in terms of a bargaining framework. This facilitates greater insights into gendered economic processes that otherwise are ignored, and investigation of a wider range of macro outcomes. 相似文献
69.
70.