Then three candidate modulation schemes exploiting spatial dimensions are proposed. At last, the three modulation schemes are compared by power efficiency and bandwidth efficiency. It shows that spatial quadrature amplitude modulation scheme is appropriate for long distance wireless optical communications for its high bandwidth efficiency and spatial circular symmetry.

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Then the author summarizes the framework for efficiency review in the western jurisdictions into the following four aspects: that is, how efficiency should be factored into the merger review; which types of efficiency should be counted; what is the cognizable efficiency and how to weight efficiency against anti-competitive effects.

在此基礎(chǔ)上從效率在合并審查中的地位和作用国产一级爱c在线大片、所認(rèn)可的效率類型国产大乳一级在线观看、效率的認(rèn)可條件以及效率與反競爭性效果的權(quán)衡四個方面概括歐美主要國家對效率審查的基本框架。

Methods of measuring the input components, their prices and output elements are given. We put forward some new methods in measuring components, including composite depreciation rate, equality working hours, and proxy of input resources. Using the mature methods of efficiency measurement and decomposition available, we make a detailed investigation into 4 listing companies of oil industry with a span of 12 periods. Basic conclusions we draw include: labor inputs affects oil field output mostly in China; China oil fields operates in a low technical efficiency level average of 0.61; Increasing difficulties with expanding output has the greatest influence on cost; Cost efficiency of China oil fields averages at 1.47; Total factor productivity of China oil fields averages at 10%, accounting for 79% of the total output growth rate of 12.6%; Frontier technology progress contributes the most to TFP of China oil fields with 17 percentage points.

本文沿用了已有文獻(xiàn)中關(guān)于效率計量與分解的成熟方法影音先锋最新av资源，對我國三家油田上市公司與一家上市石油公司12個時期的技術(shù)效率與成本效率進(jìn)行了詳細(xì)的計量欧美天天、分解與分析，得到的基本結(jié)論有：勞動力投入是影響我國油田上市公司產(chǎn)出的最重要的影響因素在线欧美h；油田的平均技術(shù)效率僅為0.61中文字幕强奸乱伦国产；產(chǎn)出項是影響成本的顯著因素，這說明隨著產(chǎn)出增加而出現(xiàn)的開采難度增加是導(dǎo)致開采成本增加的重要因素国产色色一级免费视频；油田的平均成本效率為1.47高清福利免费久久久久；全要素生產(chǎn)率的增長平均在10％左右，占到了產(chǎn)出平均增長率12.6％的79％wwwwⅹⅹxx，表明我國油田的生產(chǎn)率的提高主要是依靠全要素生產(chǎn)率的提高而實現(xiàn)的国产射射爽爽，只有21％左右的產(chǎn)出增長是依靠要素投入而實現(xiàn)的；前沿技術(shù)進(jìn)步是油田全要素生產(chǎn)率增長的主要源泉七七久久，在2001～2004年期間，前沿技術(shù)進(jìn)步對油田生產(chǎn)率的貢獻(xiàn)高達(dá)17個百分點Aa黄色网址。

The major findings include:(1) By using fuel as the base indicator of relative efficiency, we found the following input factors' distribution inefficiency for domestic airlines: The distribution inefficiency of labor and capital input factors differs from airline to airline, and is becoming more severe with time; the distribution inefficiency of other factors does not differ very much among airlines but varies with time. It is inefficient from 1989 to 1995 but becomes more efficient during 1996 to 1997;(2) Airline companies have higher economies of density before 1996, but tend to show a constant return to density in 1997 when considering allocative distortions. The technical efficiency of input factors as a whole has declined after the open-air policy;(3) The costs of airlines are increasing significantly due to their distribution inefficiencies;(4) The instrument variable generated through a quasi price function does not have significant influence on cost; this may imply that airline companies in this time period did not exhibit the phenomena of high-quality high-price.

其主要結(jié)論如下：(1)藉由相對燃油分配效率探討各投入要素之分配扭曲情形發(fā)現(xiàn)：勞動和因定投入要素之分配無效率因公司別而有所不同老熟妇仓乱视频一区二区，且隨時間而嚴(yán)重，唯民國86年稍有改善zz12国产小视频你懂的；其他要素之分配無效率則較不因公司別而有所不同国外A片无码毛片免费视频，但亦隨時間發(fā)生變化，初期為無效率国产黄片免费看看，在民國85免费人城网站在线观看、86年則較具效率；(2)若考慮分配扭曲情形下一本久久，國內(nèi)航空業(yè)在民國85年之前具有較高之密度經(jīng)濟(jì)露出在线，民國86年則趨向固定密度報酬；此整體投入要素之技術(shù)效率而官毛片全部免费播放无码，在天空開放政策后其技術(shù)效率隨時間變化而下降欧美A∨在线精品，但就燃油投入要素平均技術(shù)進(jìn)步率而言，則其技術(shù)效率逐年增加且幅度明顯；(3)航空公司因分配無效率所造成成本增加的情形相當(dāng)明顯www干；(4)準(zhǔn)價格工具變數(shù)對成本之影響并不明顯亚洲Va欧美va国产综合久久，此可能反映在此期間國內(nèi)航空公司似乎并未趨向於高品質(zhì)高價格之現(xiàn)象。

The economic growth accounting of China's provinces between 1990 and 2004 finds some results like the following: no matter whether human capital was introduced or not, there were technological inefficiencies in most provinces'economic activity which were pure technological inefficiencies or scale technological inefficiencies; technological change, capital deepening and human capital accumulating all promoted labor productivity, but technological efficiency change played a negative role during these years as a whole; the descending order of provincial difference of labor productivities'changes brought out by each factor was technological change, capital deepening, technological efficiency change and human capital accumulating; each province's pure technological efficiency change or scale efficiency change not only had different size, but also different evolution route.

中國各省在1990～2004年間的經(jīng)濟(jì)增長核算結(jié)果表明：不論是否引入人力資本国产精品无码无套在线，大多數(shù)省份的經(jīng)濟(jì)活動都存在著技術(shù)無效率亚洲欧美丝袜精品，這既包括純技術(shù)無效率，也包括規(guī)模無效率黄色的视频在线免费看在；技術(shù)進(jìn)步最新自拍偷拍精品视频、資本深化和人力資本積累都促進(jìn)了勞動生產(chǎn)率的提高，而技術(shù)效率的變化整體上來說在其中起阻礙作用亚洲精品自拍私拍；各因子引致的勞動生產(chǎn)率變化的省際差異從大到小依次為技術(shù)進(jìn)步97精品视频在线观看免费专区、資本深化、技術(shù)效率的變化和人力資本積累国内嫖妓无码视频在线观看；各省的純技術(shù)效率或規(guī)模效率的變化不僅大小不同午夜福利A片1000无码免费，而且它們的演變路徑也不一樣。

It is important to make clear whether the steel industry has the characteristic of scale economy or diseconomy of scale and the relation between efficiency and market structure which is the foundation of making reasonable industrial policy.

為此本文首先采用數(shù)據(jù)包絡(luò)方法測量和分析鋼鐵企業(yè)技術(shù)效率优优视频国内A级毛片、純技術(shù)效率和規(guī)模效率亚州A√，隨后從企業(yè)的角度系統(tǒng)的分析鋼鐵鋼鐵行業(yè)市場結(jié)構(gòu)、企業(yè)規(guī)模與企業(yè)效率之間的關(guān)系在线无码视频网，得出的結(jié)論是我國主要鋼鐵企業(yè)存在規(guī)模不經(jīng)濟(jì)特征一级WWW，大企業(yè)相對小企業(yè)沒有效率優(yōu)勢；市場力量假說和效率結(jié)構(gòu)假說在我國鋼鐵業(yè)市場均不成立日韩在线观看视频欧美在线一区二区。

I find that, whatever the operation strategy a hedge fund adopts, the result of efficiency rank among BCC, cross efficiency, super efficiency and super SBM efficiency are identical.

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First ,it carry on the demonstration analysis to the efficiency of Chinese stock market , judge present efficiency state , then use relevant analysis technology and T examine law in econometrics to analyze the relevant relationship between split share structure and the efficiency of Chinese stock market , and then ,put qualitative analysis on the reason of low efficiency of Chinese stock market and the uncertainty change of Chinese stock market after reform , to investigate the influence degree on the efficiency of Chinese stock market by split share structure .

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Corporate market value that departures from intrinsic value influences managers behavior and thus holdbacks corporate value creation.

進(jìn)而，本文采集中國上市公司數(shù)據(jù)色色综合电影网站，驗證本文提出的有限理性對公司定價的影響機(jī)理久久婷婷国产麻豆91天堂，實證研究發(fā)現(xiàn)：1、中國證券市場上国产精品黄片在线播放，投資者不能正確判斷公司價值創(chuàng)造的效率亚洲福利日韩看片无码，從而中國上市公司的市場價值嚴(yán)重脫離公司價值創(chuàng)造的實際情況，出現(xiàn)公司價值創(chuàng)造效率越低久操手机在线网站播放，市場對公司的價值預(yù)期反而越高的現(xiàn)象一级做a爱全免费视频在线。2、背離了公司真實價值創(chuàng)造效率的市場對公司的價值預(yù)期強(qiáng)烈影響到公司經(jīng)理人的投融資和經(jīng)營行為亚洲a毛网站，阻礙了公司下期的價值創(chuàng)造效率91在线精品国自产拍。3、在公司定價偏差對公司內(nèi)在價值的反作用過程中黄色精品视频在线观看，行為成本精品黄黄久久久免费看、代理成本和制度成本使經(jīng)理人理性在現(xiàn)實中受到限制，從而經(jīng)理人的有限理性行為妨礙并降低公司再投資效率成人播放日韩在线播放AV，進(jìn)而妨礙了公司價值創(chuàng)造效率免费看黄色短片，從而影響公司的內(nèi)在價值和市場價值。

The second part is the second chapter of the paper, is introduces efficiency measurement methods and theory on banking, make matting for efficiency of the Rural Credit Unions. The third part is the third and fourth chapter of the paper ,and it is main body of the study .The third chapter is the efficiency analysis of the object ,the result show that the efficiency of RCU correspond, some lowlihead at all times, and scale inefficacy is mostly cause of RCU integrate technique inefficacy; The fourth chapter base the result analysis the factor affect RUCs technical efficiency ,discuss their relationship.

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