Two oil price shocks changed the pattern of cheap oil. The first was the Arab embargo on oil exports in 1973. Oil prices rose five fold. In 1978, the second was the fall of Shah Iran. Prices soared to $80-$100 a barrel in today‘s prices. In 1960, OPEC was established and since then it has been...

This research is devoted to analysis of efficiency estimation in presence of spatial relationships and spatial heterogeneity in data. We presented a general specification of the spatial stochastic frontier model, which includes spatial lags, spatial autoregressive disturbances and spatial...

This paper aimed at a statistical analysis of competition for tourists between regions within Baltic states (Estonia, Latvia, Lithuania) and estimation relative efficiency levels of regions. We apply a modern approach called Spatial Stochastic Frontier and corresponded to spatial modification of...

This paper is devoted to statistical analysis of spatial competition and cooperation between European airports. We propose a new multi-tier modification of spatial models, which allow estimating of spatial influence varying with the distance. Competition and cooperation effects don't diminish...

Still today Cameroon is suffering from a shy landscape of entrepreneurship and a private sector constituted at 90% by SMEs confronted to a lack of funding; The situation tends to increase with the advent of financial crisis. It is in this framework that this study tries to make an identification...

There has been a huge interest during the last decade on modelling hospital cost. Now that there is a fare amount of clarity achieved in estimating cost functions of hospitals, it is time to take stock of the existing methodologies. This article through a brief review of the past studies...

Estimating the manufacturing cost is a critical task with high importance to industrial firms. The cost estimating can drive bidding strategies, management of resources, production policies and other issues crucial to the economic success of the company. Essentially, cost estimation should be...

The employability of graduates remains a concern, most particularly at times like the present where the unemployment rate tends to rise, and that higher education graduates are facing greater difficulties in accessing the labour market in Europe. Notably, women are characterized by higher...

The paper considers the line city model of spatial competition with the exogenous Stackelberg competition. With low transport costs, firms' equilibrium locations are in the center of the market. The leader profit is twice as big as the follower's profit, the price is minimum and the quantity is...

In this paper I provide new evidence on the implications of treatment effect heterogeneity for least squares estimation when the effects are inappropriately assumed to be homogenous. I prove that under a set of benchmark assumptions linear regression provides a consistent estimator of the...