The Determinants of the Cost Efficiency of Electric Generating Plants: A Stochastic Frontier Approach

2002 ◽  
Vol 68 (4) ◽  
pp. 935 ◽  
Author(s):  
L. Dean Hiebert
2009 ◽  
Vol 10 (1) ◽  
pp. 1-21
Author(s):  
Gaffari Ramadhan

This study estimates the banking efficiency in the Province of West Sumatera for the years of 2007-2008. Using 19 samples of commercial banks, the estimation applies the Stochastic Frontier Approach (SFA) model in order to analyze the cost efficiency of commercial banks. This study finds that the bank's cost function is significantly affected by price of labors, price of funds, and loans. The results of the banking efficiency estimation show that in annually almost banks have more than 80 percent of the efficiency level. In the average estimation, it also shows the same result. By dividing banks into groups, the estimation shows that the government bank is more efficient than the national private bank.


Author(s):  
Shaker Sarsour ◽  
Yousef Daoud

AbstractThis study estimates the cost (technical) efficiency of the banking system in Occupied Palestinian Territory (OPT), using a panel of 18 banks during the period 2000–2009. Estimates have been obtained using the stochastic frontier approach. The analyses were extended to cover bank ownership (foreign and local), type (Islamic and commercial) and bank size. Results indicate that the overall cost (technical) efficiency of banks in the OPT is declining during the period of research. The mean of cost and technical efficiency was found to deteriorate through the years. Cost efficiency declined from 0.730 in 2000 to 0.666 in 2009, while technical efficiency declined from 0.733 to 0.713 during the same period. Moreover, the lower allocative efficiency (incorrect input mix rather than utilization or wasting resources) is the main cause of the decline in cost efficiency over the period of analysis. In addition, large banks have lower cost efficiency, which indicates the presence of diseconomies of scale for banks in OPT.


2015 ◽  
Vol 17 (4) ◽  
pp. 457-480 ◽  
Author(s):  
Rafika Rahmawati

Entering the ASEAN Economic Community (AEC) in 2015, the Islamic banking in Indonesia is expected to have better performance to compete sustainably with local banks and foreign. The performance of the banks using the cost efficiency approach with a focus on two inputs (cost of fund and cost of labor) and the two outputs (total financing and owned securities). Using Stochastic Frontier Approach (SFA) and Data Envelopment Analysis (DEA) on Islamic Banks during the period of January 2010 to December 2013, the result shows that the level of efficiency of the Islamic banks in Indonesia is not optimal. Our calculation shows different result for both method (SFA and DEA), where the highest efficiency levels using SFA methodis Bank Mega Syariah, while with the DEA method is Bank Muamalat Indonesia. Leaving some option of strategies to improve their cost efficiency; this includes increasing their assets, increasing deposits, and cut cost the unnecessarily cost. More strategy includes product innovation, reducing the salary of the board of directors, and put the funds in profitable portfolio. For the authorities, this paper has demonstrated the use of frontier approach as good alternative in assessing the performance of the banks.


2009 ◽  
Vol 7 (2) ◽  
pp. 117-125 ◽  
Author(s):  
Nobuyoshi Yamori ◽  
Kozo Harimaya

With the number of bank consolidations increasing around the world since the 1990s, several studies have examined what factors drive banks to consolidate, and some argue that bank managers who have a motive of empire buildings choose mergers. In this study, we deal with mergers among Japanese small mutual banks (credit associations or Shinkin banks) during the period 1996 to 2005. Japanese credit associations have been experiencing an unprecedented wave of consolidation, with their number decreasing from 410 (March 1996) to 292 (April 2006). Interestingly, unlike stock companies, mutual companies are often expected to be weak in terms of disciplining managers. If so, mutual banks tend to choose inefficient mergers at the expense of other stakeholders. Here, we use the stochastic frontier approach (SFA) to obtain “cost efficiency” proxy. We find that while the efficiency of acquiring credit associations decreases during the merger period, mergers do ultimately improve efficiency. Based on our results we find that raising efficiency, not for building empires, is an important goal for such credit association mergers.


2020 ◽  
Vol 22 (2) ◽  
pp. 209-227
Author(s):  
Phong Hoang Nguyen ◽  
Duyen Thi Bich Pham

PurposeThe paper aims to enrich previous findings for an emerging banking industry such as Vietnam, reporting the difference between the parametric and nonparametric methods when measuring cost efficiency. The purpose of the study is to assess the consistency in issuing policies to improve the cost efficiency of Vietnamese commercial banks.Design/methodology/approachThe cost efficiency of banks is assessed through the data envelopment analysis (DEA) and the stochastic frontier analysis (SFA). Next, five tests are conducted in succession to analyze the differences in cost efficiency measured by these two methods, including the distribution, the rankings, the identification of the best and worst banks, the time consistency and the determinants of efficiency frontier. The data are collected from the annual financial statements of Vietnamese banks during 2005–2017.FindingsThe results show that the cost efficiency obtained under the SFA models is more consistent than under the DEA models. However, the DEA-based efficiency scores are more similar in ranking order and stability over time. The inconsistency in efficiency characteristics under two different methods reminds policy makers and bank administrators to compare and select the appropriate efficiency frontier measure for each stage and specific economic conditions.Originality/valueThis paper shows the need to control for heterogeneity over banking groups and time as well as for random noise and outliers when measuring the cost efficiency.


2010 ◽  
Vol 2010 ◽  
pp. 1-20 ◽  
Author(s):  
Marcus Vinicius Pereira de Souza ◽  
Madiagne Diallo ◽  
Reinaldo Castro Souza ◽  
Tara Keshar Nanda Baidya

The purpose of this study is to evaluate the efficiency indices for 60 Brazilian electricity distribution utilities. These scores are obtained by DEA (Data Envelopment Analysis) and Bayesian Stochastic Frontier Analysis models, two techniques that can reduce the information asymmetry and improve the regulator's skill to compare the performance of the utilities, a fundamental aspect in incentive regulation schemes. In addition, this paper also addresses the problem of identifying outliers and influential observations in deterministic nonparametric DEA models.


2017 ◽  
Vol 29 (2) ◽  
pp. 171-182 ◽  
Author(s):  
Thanh Ngo ◽  
David Tripe

Purpose This paper aims to examine alternative methods for treating nonperforming loans (NPLs) in bank cost-efficiency studies using stochastic frontier analysis (SFA). Design/methodology/approach The authors consider three methods of treating NPLs in SFA: as an additional control variable, as an environmental factor or as a deduction from total loans. Using data from the Vietnamese banking system (2003-2010), the authors then compare these results with those of the base model (where total loans is used regardless of the NPLs) to see which one is more appropriate for this study. Findings The authors observed that the first two methods are inappropriate for the analysis: one cannot find the significant relationship between NPLs and the banks’ total cost, and the other cannot account for any inefficiency at all. The authors suggested that the third method of separating NPLs from total loans can provide better insights. Using the proposed method, the authors showed that the cost-efficiency of Vietnamese banks over the period examined was moderate with a slight decreasing trend. When NPLs are separated, the cost-efficiency decreases in state-owned banks and big banks, whereas it increases in small and private banks. Research limitations/implications Research is limited to Vietnamese banks during a certain period, and it would be useful to apply the same technique to other data sets. Practical implications The paper suggests a new approach to account for NPLs in cost SFA studies in banking. Originality/value The paper provides a much more searching analysis of NPLs in banking than has generally been seen in previous research.


2017 ◽  
pp. 1-30 ◽  
Author(s):  
THANH PHAM THIEN NGUYEN ◽  
SON HONG NGHIEM

Given considerable changes in the Vietnamese banking environment brought about by significant reforms towards liberalization during the last two decades, this study investigates the evolution of competition and efficiency, compares the competition and efficiency of state-owned banks to joint-stock banks, and then tests the “quiet life” hypothesis in this industry over the period 2000–2014. This study employs the efficiency-adjusted Lerner index (i.e., market power) to capture competition, and the cost efficiency estimated by a Fourier-flexible function stochastic frontier analysis (SFA) to capture bank efficiency. This study firstly finds a slight improvement of competition and cost efficiency in the Vietnamese banking sector over the analysis period. Secondly, there are no significant differences in competition and cost efficiency level between state-owned and joint-stock banks. Thirdly, a positive causality running from competition to cost efficiency is documented, providing evidence of supporting the “quiet life” hypothesis. Finally, positive efficiency effects of the banks’ capital ratio and size are found, while insignificant impacts of the growth of GDP per capita and 2007 global financial crisis were observed. The results are strongly robust to a variety of tests. The findings suggest pro-competition, pro-capitalization and pro-size expansion policies in the Vietnamese banking sector if targeting at improving the cost efficiency of Vietnamese banks.


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