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51.
Al Gini 《Journal of Business Ethics》1997,16(3):323-330
This paper develops and examines the distinctions between the process of leadership, the person of the leader, and the job of leading. I argue that leadership is a delicate combination of the process, the techniques of leadership, the person, the specific talents and traits of a/the leader, and the general requirements of the job itself. The concept of leadership can and must be distinguishable and definable separately from our understanding of what and who leaders are, although the phenomenon of leadership can only be known and measured in the particular instantiation of a leader doing a job. 相似文献
52.
Fadia Al Hajj Gilles Dufrnot Kimiko Sugimoto Romain Wolf 《The Developing economies》2015,53(4):237-271
The paper examines the monetary policy actions through which central banks in sub‐Saharan Africa have tried to eliminate the negative impacts of the shocks facing their economies. We compare two different monetary policy regimes: a currency board regime (in the CFA zone) and an inflation targeting policy regime (Ghana and South Africa) when central banks respond to demand, supply, and fiscal shocks. We extend the usual forecasting and policy analysis system models to replicate the economic features of these economies during the period 2002–12 and to evaluate the impact of several policies in response to these shocks. We find that both policies are inappropriate in helping the economies escape from the effects of negative demand shocks, both are essential when negative shocks to primary balance occur, while inflation targeting dominates the currency board regime as a strategy to cope with positive shocks to inflation. 相似文献
53.
Kim and Maksimovic provide an empirical model to examine the effect of dept on a firm. Their model is adopted to examine agricultural supply and marketing cooperatives. Using a short-run variable cost function, we find firm efficiency decreases as dept increases. A US$1 increase in indebtedness increases total short-run variable costs by US$0.0167 or roughly 1.67% Dept tends to shift input usage away from labour inputs. A test developed by Conrad and Unger is applied to determine whether the agricultural supply and marketing cooperatives are at a long-run equilibrium capacity. It is found that most of the cooperatives were overinvested in capacity. However,dept does not explain this overinvestment. Finally,the effect of dept on total productivity over the study period is examined. It is found that dept has had a small positive impact on total factor productivity growth. Scale economics and non-optimal capacity had large impacts on total factor productivity. Although dept is associated with short-run misallocation of resources, we find little evidence that dept is associated with long -run suboptimal capacity. 相似文献
54.
We consider a signaling model where the sender?s continuation value after signaling depends on his type, for instance because the receiver is able to update his posterior belief. As a leading example, we introduce Bayesian learning in a variety of environments ranging from simple two-period to continuous-time models with stochastic production. Signaling equilibria present two major departures from those obtained in models without learning. First, new mixed-strategy equilibria involving multiple pooling are possible. Second, pooling equilibria can survive the Intuitive Criterion when learning is efficient enough. 相似文献
55.
This paper implements the generalized maximum entropy (GME) method in longitudinal data setup to investigate the regression para meters and correlation among the repeated measurements. We derive the GME system using Shannon classical entropy as well as some higher‐order entropies assuming an autoregressive correlation structure. This method is illustrated using two simulated examples to study the effect of changing the support range and compare the performance of the GME approach with the classical estimation methods. 相似文献
56.
Al Amiri Nabeel El Khmidi Seham Al Qawasmeh Khaled Al Horani Azmi 《Employee Responsibilities and Rights Journal》2021,33(3):189-211
Employee Responsibilities and Rights Journal - Organizational psychology applies psychological theories to improve the physical and mental well-being of employees, increase productivity, and... 相似文献
57.
Mustapha Rachdi Ali Laksaci Zoulikha Kaid Abbassia Benchiha Fahimah A. Al‐Awadhi 《Statistica Neerlandica》2021,75(1):42-65
We combine the k‐Nearest Neighbors (kNN) method to the local linear estimation (LLE) approach to construct a new estimator (LLE‐kNN) of the regression operator when the regressor is of functional type and the response variable is a scalar but observed with some missing at random (MAR) observations. The resulting estimator inherits many of the advantages of both approaches (kNN and LLE methods). This is confirmed by the established asymptotic results, in terms of the pointwise and uniform almost complete consistencies, and the precise convergence rates. In addition, a numerical study (i) on simulated data, then (ii) on a real dataset concerning the sugar quality using fluorescence data, were conducted. This practical study clearly shows the feasibility and the superiority of the LLE‐kNN estimator compared to competitive estimators. 相似文献
58.
Summary. In a (generalized) symmetric aggregative game, payoffs depend only on individual strategy and an aggregate of all strategies. Players behaving as if they were negligible would optimize taking the aggregate as given. We provide evolutionary and dynamic foundations for such behavior when the game satisfies supermodularity conditions. The results obtained are also useful to characterize evolutionarily stable strategies in a finite population.Received: 29 December 2002, Revised: 27 January 2004, JEL Classification Numbers:
C72, D41, D43.An earlier version of this paper was titled The Evolutionary Logic of Feeling Small and was written while the first author was affiliated with the University of Salamanca (Spain). We are indebted to Ken Binmore, Larry Blume, Luis Corchón, Georg Kirchsteiger, Paco Marhuenda, Akihiko Matsui, Diego Moreno, Manfred Nermuth, Klaus Ritzberger, Jörgen Weibull, an anonymous referee, and seminar participants at the universities of Vienna, Carlos III de Madrid, and Salamanca for many helpful comments and suggestions. Obviously, only the authors are responsible for any errors and omissions. We gratefully acknowledge financial support from the Austrian Science Fund (FWF) under Project P15281 as well as from the Austrian Exchange Service (ÖAD) and the Spanish Ministry of Education and Culture under the Spain-Austria Acciones Integradas respective projects HU02-4 and 18/2003. 相似文献
59.
Debojyoti Das M. Kannadhasan Aviral Kumar Tiwari Khamis Hamed Al-Yahyaee 《Applied economics letters》2018,25(20):1447-1453
In this article, we revisit the issue of contagion, interdependence and changes in correlation structure after the Global Financial Crisis (GFC) of 2008 between developed and emerging markets in a time-frequency domain using a wavelet-based approach for the period spanning over 1 January 1999 to 8 November 2016. We report evidences of: (a) weaker contagion for Latin American emerging markets during GFC, (b) a strong contagion effect for emerging markets in Europe and the Middle East and (c) a fall in long-run co-movements after GFC, which means by investing in emerging markets, the diversification benefits can be derived in the long run. We report evidence of coexistence of contagion and permanent change in correlation structure. 相似文献
60.