Showing 91 - 100 of 32,473
In this paper we propose an oligopolistic market model of pollution, where demand is not linear and firms are revenue maximizers. Additionally we assume that the rate of purification is very small tending to zero and that each firm accumulates a pollution share depending for example on firm’s...
Persistent link: https://www.econbiz.de/10008534275
Traditional economic theory, up to the middle of the twentieth century, builds up the production functions regardless the inputs’ scarcity. In the last few decades has been clear that both the inputs are depletable quantities and a lot of constraints are imposed in their usage in order to...
Persistent link: https://www.econbiz.de/10008534534
Dynamic modeling is general and recently the most interesting perspective to solve a dynamic economic problem based on Pontryagin’s maximum principle. Moreover traditional economic theory, up to the middle of twentieth century, builds up the production functions regardless the inputs’...
Persistent link: https://www.econbiz.de/10008534554
This study explores the efficiency of the Greek Banking sector with the use of a number of suggested financial efficiency ratios for the time period 1997-99. A non-parametric analytic technique (Data Envelopment Analysis) is employed for measuring efficiency. The suggested model in our analysis...
Persistent link: https://www.econbiz.de/10005617200
In this study we examine in covariance stationary time series the consequences of constructing confidence intervals for the population mean using the classical methodology based on the hypothesis of independence. As criteria we use the actual probability the confidence interval of the classical...
Persistent link: https://www.econbiz.de/10009147855
In simple random sampling, the basic assumption at the stage of estimating the standard error of the sample mean and constructing the corresponding confidence interval for the population mean is that the observations in the sample must be independent. In a number of cases, however, the validity...
Persistent link: https://www.econbiz.de/10009147868
This paper considers the classical newsvendor model when demand is normally distributed but with a large coefficient of variation. This leads to observe with a non-negligible probability negative values that do not make sense. To avoid the occurrence of such negative values, first, we derive...
Persistent link: https://www.econbiz.de/10009147873
In this paper we show that the random walk model with drift behaves like an ARIMA (0,2,1) when its parameter θ is greater but close to –1. Using the random walk for predicting future values of an ARIMA (0,2,1) process, we find out that when θ is not so close to –1, the performance of the...
Persistent link: https://www.econbiz.de/10009147899
In this paper we claim that the disadvantage in the pollution control is not primarily the accumulated stock of pollutants, which is an accomplished fact, but the use of the available inputs in production in conjunction with the available equipment are the sources of pollutants accumulation. In...
Persistent link: https://www.econbiz.de/10009004805
In this study, a basic comparison between the Pigouvian and the Coasean approaches is carried out in order to discuss and comment on the mechanisms by which externalities are resolved. Environmental control approaches are examined and compared in terms of minimization of abatement costs,...
Persistent link: https://www.econbiz.de/10011107342