جستجوی مقالات مرتبط با کلیدواژه « Economies of Scope » در نشریات گروه « اقتصاد »

In analyzing the efficiency of electricity distribution companies, according to the economies of scale hypothesis, due to the existence of natural monopoly properties, larger firms are expected to be technically more efficient (ceteris paribus). To investigate this issue, this study assessed the technical efficiency, economies of scale, and economies of scope of Iranian electricity distribution companies during 2011-2017 and examined their relationship with company size. For this purpose, the stochastic frontier analysis technique and the input distance function approach were used. The results show that technical efficiency first decreases and then increases with increasing company size. The results also show that economies of scale are present in most companies, although the use of economies of scale decreases as company size increases. Finally, economies of scope were observed in all the companies studied, and their magnitude decreases as company size increases. Therefore, it can be said that the hypothesis of economies of scale implying higher technical efficiency of larger companies, is not confirmed, although the necessary condition for the establishment of a natural monopoly is present in Iranian electricity distribution companies

This study attempts to analyze the economies of scale and scope of Iranian public universities through estimating the cost function of 75 public universities. For this purpose, the quadratic cost function form is used to estimate the cost function of universities. Furthermore, the research model is estimated by using the panel data technique. The results show that there are no general and specific economies of scale in the studied universities. Moreover, there is a significant gap in the average scale of the studied universities with respect to a desirable economic scale. The economic scale of the universities is different in different degrees, and overall, the economic scale of different degrees are about 1.25 to 2 times their extant situation. Due to the growth policy of the new universities in the past two decades, many small-scale universities have been established that still have a considerable capacity for quantitative and qualitative development. Investigating the economies of scale and scope indicates the existence of economies of scale in Iranian public universities; Accordingly, it can be concluded that the average cost of non-comprehensive universities is higher than that of comprehensive universities. Hence, the integration of universities is strongly advised to achieve economies of scale.