in the commercial banking activities, efficiency is an important issue for the bank managers, monitoring part and clients. this study has appraised the efficiency performance of the commercial banks in iran. the research method has been using windows data envelopment analysis with constant and variable returns to scale and input oriented model at the period of 1991-2006. the sample of study was...

In most countries, basic research is supported through governmental research councils that select, after peer review, the individuals or teams what will receive funding. Unfortunately, the number of grants these research councils can allocate is not infinite, and many researchers (45% in Quebec) are not able to obtain any funding. A small minority of those who do get funded account for the majo...

Abstract: We use the pattern recognition algorithm of Lo et al. (2000) with some modifications to determine whether “head-and-shoulders” price patterns have predictive power for future stock returns. The modifications include the use of filters based on typical price patterns identified by a technical analyst. With data from the S&P 500 and the Russell 2000 over the period 1990-1999 we find str...

This study investigated the technical and scale efficiencies in rice production by rice farmers in Ebonyi State Nigeria using the data envelopment analysis (DEA). Data was collected from a sample of 180 farmers using multi-stage sampling technique. Data were analysed using descriptive statistics and Data Envelopment Analysis (DAE) approach. The result showed that majority of the rice farmers we...

One of the fundamental problems in the classic DEA is lack of ability to distinguish unit's performance scores that is considered as a disadvantage. Recently, Parkan et al. [9] tried to address this problem.   They proposed to assess each unit both optimistic and pessimistic views are taken into account. In contrast to traditional evaluation, one index is considered for each unit based on the l...

In this article, we will estimate efficiency amountof decision-making unit by offering the continuous piecewise polynomialextrapolation and interpolation by CCR model input-oriented on the assumptionthat it is constant returns to scale in different times. And finally, we willestimate efficiency amount of decision-making unit indifferent times byoffering an example.

Broiler production has great potentials for increasing protein supply in Iran and plays a vital role in economic system of the country. In this study technical, allocative and economic efficiency of broiler production farms in Fars Province was estimated by using Data Envelopment Analysis approach (DEA) method. The results of the study reveal that under constant return to scale (CRS) and variab...