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Importance and influence of organizational changes on companies and their employees
Halkos, George - Volkswirtschaftliche Fakultät, … - 2012
The timely and continuing adaptation of companies to the rapid changes in the market is a prerequisite to survival and growth. Simultaneously, the smooth adaptation of employees to changes contributes not only to the improved running of organizations but also to their personal improvement and...
Persistent link: https://www.econbiz.de/10009650026
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National Innovation System in the Era of Liberalization: Implications for Science and Technology Policy for Developing Economies
Singh, Lakhwinder; Singh, Baldev - Volkswirtschaftliche Fakultät, … - 2009
of the developing and newly industrializing economies shows that national systems of innovation have evolved keeping in … two essential characteristics of national innovation system that connects the users and producers of knowledge and also … rights on the other. How these arrangements have affected the national system of innovation both in the developed and …
Persistent link: https://www.econbiz.de/10004992044
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Unorganised Manufacturing Industry in the Era of Globalization: A Study of Punjab
Singh, Lakhwinder; Jain, Varinder - Volkswirtschaftliche Fakultät, … - 2006
The recent developments in the theory of industrial organisation have underlined the importance of small scale industry. Small industry can be equally competitive in the fast changing global economy provided it exploits economies of scale and scope while locating itself in clusters along with...
Persistent link: https://www.econbiz.de/10005836781
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Exploring Greek innovation activities: the adoption of generalized linear models
Halkos, George - Volkswirtschaftliche Fakultät, … - 2010
technological development. For this reason we rely on the final results of a research project on women in innovation, technology and …
Persistent link: https://www.econbiz.de/10008532157
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Validity and precision of estimates in the classical newsvendor model with exponential and rayleigh demand
Halkos, George; Kevork, Ilias - Volkswirtschaftliche Fakultät, … - 2012
In this paper we consider the classical newsvendor model with profit maximization. When demand is fully observed in each period and follows either the Rayleigh or the exponential distribution, appropriate estimators for the optimal order quantity and the maximum expected profit are established...
Persistent link: https://www.econbiz.de/10009647205
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Evaluating alternative estimators for optimal order quantities in the newsvendor model with skewed demand
Halkos, George; Kevork, Ilias - Volkswirtschaftliche Fakultät, … - 2012
This paper considers the classical Newsvendor model, also known as the Newsboy problem, with the demand to be fully observed and to follow in successive inventory cycles one of the Exponential, Rayleigh, and Log-Normal distributions. For each distribution, appropriate estimators for the optimal...
Persistent link: https://www.econbiz.de/10009647405
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Forecasting the optimal order quantity in the newsvendor model under a correlated demand
Halkos, George; Kevork, Ilias - Volkswirtschaftliche Fakultät, … - 2013
This paper considers the classical newsvendor model when, (a) demand is autocorrelated, (b) the parameters of the marginal distribution of demand are unknown, and (c) historical data for demand are available for a sample of successive periods. An estimator for the optimal order quantity is...
Persistent link: https://www.econbiz.de/10011107826
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On the convexity of the cost function for the (Q,R) inventory model
Halkos, George; Kevork, Ilias; Tziourtzioumis, Chris - Volkswirtschaftliche Fakultät, … - 2014
In this paper we investigate the convexity of the annual total cost function for the Hadley & Whitin (1963) continuous review (Q,R) inventory model with backorders and fixed lead-time, when the reorder point is non-negative and the cost per unit backordered is used to calculate the expected...
Persistent link: https://www.econbiz.de/10011110030
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Evaluating alternative frequentist inferential approaches for optimal order quantities in the newsvendor model under exponential demand
Halkos, George; Kevork, Ilias - Volkswirtschaftliche Fakultät, … - 2012
Three estimation policies for the optimal order quantity of the classical newsvendor model under exponential demand are evaluated in the current paper. According to the principle of the first estimation policy, the corresponding estimator is obtained replacing in the theoretical formula which...
Persistent link: https://www.econbiz.de/10011110832
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The classical newsvendor model under normal demand with large coefficients of variation
Halkos, George; Kevork, Ilias - Volkswirtschaftliche Fakultät, … - 2012
In the classical newsvendor model, when demand is represented by the normal distribution singly truncated at point zero, the standard optimality condition does not hold. Particularly, we show that the probability not to have stock-out during the period is always greater than the critical...
Persistent link: https://www.econbiz.de/10011112212