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Search Results: 1 - 10 of 8188 matches for " operating efficiency "
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An Empirical Examination of Efficiency Theory of Mergers in Emerging Market India  [PDF]
Kavita Wadhwa, Sudhakara Reddy Syamala
Theoretical Economics Letters (TEL) , 2015, DOI: 10.4236/tel.2015.56088
Abstract: The “inconclusive” existing literature on long-term horizon studies of mergers is the motivation of this paper to reexamine the post-merger performance and explore the reasons of unsatisfactory performance. We test efficiency theory of mergers by examining the industry adjusted operating performance of mergers. Unlike the existing literature which examines the operating performance of mergers at end level (ROA or ROE), we not only examine the operating performance at end level but also analyze the performance at each stage of operation i.e. material, labor, overheads, tax, interest and sales. We do not find synergy creation at the end level (i.e. ROA level). However, we observe synergy creation at tax and interest level and synergy destruction at labor and overheads level. The performance of different categories of mergers which are group/non-group mergers, related/unrelated mergers and BIFR/non-BIFR mergers is also examined. Factors explaining the post-merger profitability, efficiency and cash flows are also examined.
An Analysis on the Relative Efficiency of Furniture Enterprises in Guangdong Province Based on DEA-BCC and Clustering Method  [PDF]
Ying Ma
Open Journal of Business and Management (OJBM) , 2016, DOI: 10.4236/ojbm.2016.42037
Abstract: Constructed the empirical model for the study of the differences of the operational efficiency of furniture enterprises in Guangdong province, evaluated the technical efficiency, pure technical efficiency and scale efficiency of these furniture enterprises with DEA and took pure technical efficiency and scale efficiency as variables for cluster analysis. According to the results, we divided furniture enterprises into four types: inefficient management, efficient management, invalid management and invalid size. Then, the connotation, characteristics and the improvement of different types were discussed. Studies have shown that the reasons for the inefficiency lie in the allocation of resources, improving the existing resource input and output portfolio and effectively controlling the waste of resources are the crucial solution.
Optimal Performance for Solar Thermal Power System  [PDF]
Jianfeng LU, Jing DING, Jianping YANG
Energy and Power Engineering (EPE) , 2009, DOI: 10.4236/epe.2009.12017
Abstract: Solar thermal power is currently one of the important trends and research hotspots of solar energy. In present paper, basic physical model is proposed to investigate the solar thermal power, and the operating temperature is optimized to maximize the electricity generating efficiency. When the concentrated energy flux rises, the absorption efficiency of heat receiver will first increase and then decrease, while the increasing of flow velocity can improve the absorption performance. As the working temperature rising, the heat loss of infrared radiation and natural convection increases quickly, so the absorption efficiency obviously decreases, while the Carnot efficiency of the steam turbine cycle will rise. Because of the coupling effects of the heat absorption cycle and turbine cycle, the electricity generating efficiency will reach maximum with the optimal working temperature.
The Association between the Operating Efficiency of Taiwanese FDI Enterprises in Mainland China and the Investment Performance of Their Parent Companies  [PDF]
Wang Jui-Chih, Hsiao Hsing-Chin
Chinese Studies (ChnStd) , 2014, DOI: 10.4236/chnstd.2014.33014
Abstract: This paper uses data envelopment analysis and seemingly unrelated regression estimation model to examine the association between the operating efficiency of Taiwanese FDI enterprises in mainland China and the investment performance of their parent companies. We find that the more capital-intensive Taiwanese FDI enterprises in mainland China have higher operating efficiencies. Enterprises investing in East China area have lower operating efficiency. In addition, higher operating efficiencies of FDI enterprises in mainland China are associated with higher investment performance of the Taiwanese parent companies. The Taiwanese parent companies with greater investment of FDI enterprises in mainland China also have higher investment performance. The Taiwanese parent companies with higher R & D expenditure percentages do not result in improved investment performance because of a lack of spillover to FDI subsidiaries or more uncertain factors. Furthermore, the wholly-owned investment type of a parent company has greater investment performance than joint-venture investment type.
Research on Operating Performance of Small-Sized Retailers—Case Study of City S Market  [PDF]
Jihua Zhang
Open Journal of Business and Management (OJBM) , 2015, DOI: 10.4236/ojbm.2015.32022
Abstract: Previous studies have shown that small-sized retailers have weak competitiveness. This paper is intended to explore why they can survive in the market for a long time. It is proven that compared with large chain retailers, small-sized retailers are advantageous in employee utilization and gross margin despite of their weakness in commodity purchase and space utilization. Previous studies also reveal that small-sized retailers are significantly fewer in commercially developed regions than commercially underdeveloped regions, suggesting that it becomes harder for small-sized retailers to survive in the market along with gradual improvement of commercial facilities.
Assessment of boiler’s operating performance in different energy sectors in the province of Vojvodina
Kljaji? Miroslav V.,Gvozdenac Du?an D.
Thermal Science , 2012, DOI: 10.2298/tsci120215065k
Abstract: Creating database enables the wide range of possibilities for implementing energy management approach and for critical evaluation of accepted practices in the field of energy efficiency. This paper contains besides the existing database also measurements in the group of randomly selected boilers. The sample formed in such a way covers approximately 25% of all boilers in the Province of Vojvodina. This provides reliability and relevance of obtained results. With reference to users, it can be the indicator of a need to undertake concrete activities for the purpose of increasing energy efficiency of plants and improving observed situation. The last section concerns relevant authorities responsible for developing and amending the energy policy.
Analysis of Facility Systems’ Reliability Subject to Edge Failures: Based on the p-Median Problem  [PDF]
Zongtian Wei, Huayong Xiao, Yuxi Quan
American Journal of Operations Research (AJOR) , 2011, DOI: 10.4236/ajor.2011.14032
Abstract: We view a facility system as a kind of supply chain and model it as a connected graph in which the nodes represent suppliers, distribution centers or customers and the edges represent the paths of goods or information. The efficiency, and hence the reliability, of a facility system is to a large degree adversely affected by the edge failures in the network. In this paper, we consider facility systems' reliability analysis based on the classical p-median problem when subject to edge failures. We formulate two models based on deterministic case and stochastic case to measure the loss in efficiency due to edge failures and give computational results and reliability envelopes for a specific example.
Research on the Operating Efficiency of Listed Companies in the Crafts Industries Based on DEA
Qingdong LI,Zhixin CUI
Management Science and Engineering , 2012, DOI: 10.3968/j.mse.1913035x20120603.1893
Abstract: Using DEA method, this paper mainly researches on the operating efficiency of the 18 Chinese crafts listed companies which are as decision making units (DMU). The net profit, gross income, total assets, the total cost, current assets, the number of employees are thought to input and output variables. Combining with the data results, this essay analyzes currently enterprises’ operating efficiency of Chinese crafts industries, which provide references for their development. Key words: The crafts industries; Listed companies; DEA; Operating efficiency
The Operating Efficiency and Market Value of Jordanian Privatized Firms: Fixed and Random Effects Analysis
DR. Ali Mustafa Abdullah Al Qudah
Interdisciplinary Journal of Research in Business , 2011,
Abstract: This study examines the impact of privatization by using a unique sample of 23 Jordanian privatized firms through the period 1992-2005.This study offers new measures not used in previous studies. In particularly, operating efficiency is measured by turnover ratio (fixed assets turnover) and performance is measured by market value ratio (share market price to share book value). Panel data analysis is employed to determine the impact of privatization on firms’ efficiency and performance. The results show that privatization has a positive and significant impact on privatized firms operating efficiency and performance as measured by market value ratio. This finding is consistent with most of the existing evidences on the impact of privatization on performance and efficiency. The results also show that strategic partner has a positive and significant impact on privatized firms operating efficiency and market value. In general Liquidity has a positive impact on privatized firms’ operating efficiency and performance. The study documents that firms’ specific effect (size) is a significant performance determinant since it influences operating efficiency and performance of privatized firms’. The present study also finds that openness of the economy is also a factor that affects privatized firms operating efficiency and performance.
Optimal Weights in Nonparametric Analysis of Clustered ROC Curve Data  [PDF]
Yougui Wu
Journal of Applied Mathematics and Physics (JAMP) , 2015, DOI: 10.4236/jamp.2015.37102

In diagnostic trials, clustered data are obtained when several subunits of the same patient are observed. Within-cluster correlations need to be taken into account when analyzing such clustered data. A nonparametric method has been proposed by Obuchowski (1997) to estimate the Receiver Operating Characteristic curve area (AUC) for such clustered data. However, Obuchowski’s estimator gives equal weight to all pairwise rankings within and between cluster. In this paper, we modify Obuchowski’s estimate by allowing weights for the pairwise rankings vary across clusters. We consider the optimal weights for estimating one AUC as well as two AUCs’ difference. Our results in this paper show that the optimal weights depends on not only the within-patient correlation but also the proportion of patients that have both unaffected and affected units. More importantly, we show that the loss of efficiency using equal weight instead of our optimal weights can be severe when there is a large within-cluster correlation and the proportion of patients that have both unaffected and affected units is small.

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