This paper analyses the framework, the obstacles, the determinant factors and furthermore the role of female in the Greek entrepreneurship. Apart of presenting the empirical results relying on the analysis of the data collected by the survey we performed to the Greek enterprises, we use the...

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...

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...

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...

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...

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...

The aim of this study is to investigate the effect of social factors (expressed as social norms, institutional and social trust and social networks) on the decision of individuals to pay for the protection of biodiversity. For this purpose an empirical study was carried out in two National Parks...

This paper is concerned with the classic topic of intertemporal resource economics: the optimal harvesting of renewable natural resources over time by one and several resource owners with conflicting interests. The traditional management model, dating back to Plourde (1970), is extended towards...

Individuals’ decision to use a particular coastal beach is influenced by their preferences and perceptions as well as beach’s characteristics. This study examines visitors’ attributes and desired site specific characteristics in order to determine the factors affecting willingness to pay...

In this paper we examine the concept of an Environmental Kuznets Curve (EKC) hypothesis in a critical way aiming to justify its existence as well as to propose policies compatible with sustainable development. For this reason, we make use of a data set on CO2 emissions for 32 countries over a 36...