http://www.kadhoai.com.cn 2026-04-10 07:26:37 來源:中國自動化學會專家谘詢工作委員會
在zai國guo際ji金jin融rong危wei機ji蔓man延yan,世shi界jie經jing濟ji形xing勢shi複fu雜za多duo變bian的de環huan境jing下xia,各ge國guo正zheng致zhi力li於yu通tong過guo調tiao整zheng產chan業ye結jie構gou,應ying對dui金jin融rong危wei機ji的de挑tiao戰zhan,恢hui複fu經jing濟ji增zeng長chang的de動dong力li。與yu此ci同tong時shi,中zhong國guo也ye正zheng通tong過guo積ji極ji的de製zhi度du創chuang新xin優you化hua產chan業ye結jie構gou與yu布bu局ju,擺bai脫tuo金jin融rong危wei機ji的de束shu縛fu,保bao持chi經jing濟ji持chi續xu、健康和快速發展。2009年(nian)中(zhong)央(yang)經(jing)濟(ji)工(gong)作(zuo)會(hui)議(yi)特(te)別(bie)指(zhi)出(chu)要(yao)從(cong)製(zhi)度(du)安(an)排(pai)入(ru)手(shou),因(yin)勢(shi)利(li)導(dao)引(yin)導(dao)國(guo)際(ji)產(chan)業(ye)有(you)序(xu)地(di)向(xiang)本(ben)國(guo)轉(zhuan)移(yi),亦(yi)是(shi)讓(rang)我(wo)們(men)充(chong)分(fen)利(li)用(yong)金(jin)融(rong)危(wei)機(ji)引(yin)致(zhi)的(de)全(quan)球(qiu)產(chan)業(ye)結(jie)構(gou)調(tiao)整(zheng)和(he)國(guo)際(ji)分(fen)工(gong)重(zhong)組(zu)的(de)曆(li)史(shi)契(qi)機(ji),吸(xi)引(yin)科(ke)技(ji)含(han)量(liang)和(he)產(chan)品(pin)附(fu)加(jia)值(zhi)高(gao)的(de)現(xian)代(dai)先(xian)進(jin)產(chan)業(ye)和(he)高(gao)端(duan)生(sheng)產(chan)環(huan)節(jie)向(xiang)本(ben)國(guo)轉(zhuan)移(yi),推(tui)動(dong)我(wo)國(guo)產(chan)業(ye)結(jie)構(gou)的(de)優(you)化(hua)與(yu)升(sheng)級(ji)。引(yin)導(dao)國(guo)際(ji)產(chan)業(ye)轉(zhuan)移(yi)的(de)曆(li)史(shi)機(ji)遇(yu)
國(guo)際(ji)金(jin)融(rong)危(wei)機(ji)的(de)爆(bao)發(fa)導(dao)致(zhi)了(le)全(quan)球(qiu)經(jing)濟(ji)的(de)衰(shuai)退(tui),促(cu)使(shi)世(shi)界(jie)各(ge)國(guo)設(she)計(ji)有(you)效(xiao)的(de)製(zhi)度(du)安(an)排(pai)調(tiao)整(zheng)產(chan)業(ye)結(jie)構(gou),以(yi)作(zuo)為(wei)應(ying)對(dui)金(jin)融(rong)危(wei)機(ji)的(de)主(zhu)要(yao)手(shou)段(duan),這(zhe)使(shi)得(de)金(jin)融(rong)危(wei)機(ji)有(you)可(ke)能(neng)為(wei)中(zhong)國(guo)引(yin)導(dao)和(he)承(cheng)接(jie)國(guo)際(ji)產(chan)業(ye)轉(zhuan)移(yi)創(chuang)造(zao)了(le)一(yi)次(ci)難(nan)得(de)的(de)曆(li)史(shi)機(ji)遇(yu)。
一方麵,金融危機為中國引導國際產業轉移創造了客觀的曆史機遇。從全球維度來看,雖然隨著世界經濟一體化的深入發展,資本、技ji術shu和he勞lao動dong力li等deng生sheng產chan要yao素su在zai市shi場chang機ji製zhi的de作zuo用yong下xia全quan球qiu流liu動dong與yu組zu合he配pei置zhi,催cui促cu著zhe一yi國guo或huo地di區qu內nei部bu的de產chan業ye向xiang具ju有you比bi較jiao優you勢shi的de地di區qu轉zhuan移yi,但dan是shi,由you於yu發fa達da國guo家jia比bi發fa展zhan中zhong國guo家jia表biao現xian出chu較jiao高gao的de經jing濟ji發fa展zhan水shui平ping和he較jiao強qiang的de科ke技ji力li量liang,使shi得de它ta們men在zai世shi界jie分fen工gong體ti係xi和he利li益yi分fen配pei格ge局ju中zhong占zhan據ju主zhu導dao地di位wei。他ta們men將jiang資zi源yuan消xiao耗hao和he環huan境jing汙wu染ran水shui平ping高gao、jishuhanlianghechanpinfujiazhididechanyexiangfazhanzhongguojiahebufadaguojiazhuanyi,yitengchudiyukongjianfazhankejihanlianghechanpinfujiazhigaodexianjinchanyeheshengchanhuanjie,yiweichizishenzaichanyejiazhiliangaoduandeyoushidiwei。raner,youyuchuyuchanyejiazhiliangaoduandeshengchanhuanjiehexianjinchanyeduoshizibenyujishumijixingdefeiwuzhishengchanhuanjiehechanye,guojijinrongweijidebaofashidejinrongzibenduanlie,daozhifeiwuzhishengchanhuanjiehechanyequefajinrongzibendezhicheng,yiner,jinrongweijiqiangliedichongjilefadaguojianeibubuhelidegangxingchanyejiegou,birancushitamenzhongxinxietiaofeiwuzhishengchanhuanjiehechanyeyushiwushengchanhuanjiehechanyedexiangduibizhong,jiangyibufenchuyuchanyejiazhiliangaoduandeshengchanhuanjiehezibenyujishumijixingdexianjinchanyexianghaiwaizhuanyi,youcikenengxingchengguojichanyezhuanyidexinlangchao。
lingyifangmian,jinrongweijiweizhongguoyindaoguojichanyezhuanyichuangzaolezhuguandelishijiyu。gaigekaifangsanshiduoniandelishijingyanbiaoming,zhongguochenggongdezhiduzhuanxingyouxiaodicujinlejingjijiegoudeyouhuahejingjizengchangfangshidezhuanbian,chanshengle“經濟增長奇跡”,極(ji)大(da)地(di)縮(suo)小(xiao)了(le)與(yu)發(fa)達(da)國(guo)家(jia)的(de)經(jing)濟(ji)發(fa)展(zhan)差(cha)距(ju)。即(ji)使(shi)國(guo)際(ji)金(jin)融(rong)危(wei)機(ji)席(xi)卷(juan)全(quan)球(qiu),致(zhi)使(shi)世(shi)界(jie)各(ge)國(guo)經(jing)濟(ji)下(xia)滑(hua),中(zhong)國(guo)雖(sui)然(ran)也(ye)無(wu)一(yi)例(li)外(wai)地(di)不(bu)能(neng)幸(xing)免(mian),然(ran)而(er),正(zheng)當(dang)世(shi)界(jie)各(ge)國(guo)致(zhi)力(li)於(yu)尋(xun)找(zhao)金(jin)融(rong)危(wei)機(ji)的(de)應(ying)對(dui)之(zhi)策(ce)時(shi),中(zhong)國(guo)憑(ping)借(jie)對(dui)外(wai)開(kai)放(fang)三(san)十(shi)多(duo)年(nian)所(suo)積(ji)累(lei)的(de)物(wu)質(zhi)基(ji)礎(chu)和(he)及(ji)時(shi)有(you)效(xiao)的(de)製(zhi)度(du)安(an)排(pai),率(lv)先(xian)走(zou)出(chu)了(le)金(jin)融(rong)危(wei)機(ji)的(de)陰(yin)霾(mai),使(shi)得(de)發(fa)達(da)國(guo)家(jia)的(de)跨(kua)國(guo)公(gong)司(si)在(zai)麵(mian)臨(lin)本(ben)土(tu)生(sheng)產(chan)與(yu)經(jing)營(ying)環(huan)境(jing)惡(e)化(hua)時(shi),重(zhong)新(xin)審(shen)視(shi)中(zhong)國(guo)的(de)生(sheng)產(chan)成(cheng)本(ben)和(he)交(jiao)易(yi)成(cheng)本(ben)優(you)勢(shi)所(suo)帶(dai)來(lai)的(de)生(sheng)產(chan)和(he)經(jing)營(ying)環(huan)境(jing)的(de)改(gai)善(shan)。此(ci)時(shi),中(zhong)國(guo)有(you)可(ke)能(neng)依(yi)靠(kao)製(zhi)度(du)轉(zhuan)型(xing)所(suo)累(lei)積(ji)的(de)經(jing)驗(yan),進(jin)一(yi)步(bu)調(tiao)整(zheng)政(zheng)策(ce)和(he)創(chuang)新(xin)製(zhi)度(du),創(chuang)造(zao)產(chan)業(ye)升(sheng)級(ji)的(de)新(xin)環(huan)境(jing),主(zhu)動(dong)引(yin)導(dao)和(he)承(cheng)接(jie)國(guo)際(ji)先(xian)進(jin)產(chan)業(ye)轉(zhuan)移(yi),並(bing)在(zai)本(ben)國(guo)培(pei)育(yu)完(wan)整(zheng)的(de)產(chan)業(ye)價(jia)值(zhi)鏈(lian),優(you)化(hua)產(chan)業(ye)的(de)空(kong)間(jian)布(bu)局(ju),推(tui)動(dong)產(chan)業(ye)結(jie)構(gou)升(sheng)級(ji)。引(yin)導(dao)國(guo)際(ji)產(chan)業(ye)轉(zhuan)移(yi)的(de)製(zhi)度(du)創(chuang)新(xin)
中zhong國guo作zuo為wei正zheng處chu於yu工gong業ye化hua進jin程cheng中zhong的de世shi界jie上shang最zui大da的de發fa展zhan中zhong國guo家jia,要yao巧qiao借jie金jin融rong危wei機ji的de曆li史shi機ji遇yu,加jia快kuai現xian代dai工gong業ye化hua進jin程cheng,實shi現xian大da國guo的de經jing濟ji趕gan超chao,必bi然ran需xu要yao通tong過guo製zhi度du創chuang新xin引yin導dao國guo際ji先xian進jin產chan業ye和he產chan業ye價jia值zhi鏈lian高gao端duan的de生sheng產chan環huan節jie向xiang本ben國guo轉zhuan移yi來lai實shi現xian。為wei此ci,我wo們men有you針zhen對dui性xing地di提ti出chu引yin導dao國guo際ji先xian進jin產chan業ye和he高gao端duan生sheng產chan環huan節jie轉zhuan移yi的de政zheng策ce調tiao整zheng和he製zhi度du創chuang新xin:
第(di)一(yi),提(ti)高(gao)投(tou)資(zi)政(zheng)策(ce)的(de)差(cha)異(yi)化(hua)程(cheng)度(du),破(po)除(chu)無(wu)形(xing)的(de)投(tou)資(zi)政(zheng)策(ce)壁(bi)壘(lei)。為(wei)了(le)承(cheng)接(jie)國(guo)際(ji)先(xian)進(jin)產(chan)業(ye)和(he)高(gao)端(duan)生(sheng)產(chan)環(huan)節(jie)轉(zhuan)移(yi),對(dui)不(bu)同(tong)地(di)區(qu)承(cheng)接(jie)不(bu)同(tong)產(chan)業(ye)或(huo)生(sheng)產(chan)環(huan)節(jie)的(de)投(tou)資(zi)政(zheng)策(ce)應(ying)盡(jin)可(ke)能(neng)差(cha)別(bie)對(dui)待(dai),並(bing)增(zeng)強(qiang)投(tou)資(zi)政(zheng)策(ce)的(de)透(tou)明(ming)度(du),消(xiao)除(chu)政(zheng)策(ce)性(xing)歧(qi)視(shi)。一(yi)方(fang)麵(mian),由(you)於(yu)中(zhong)國(guo)各(ge)地(di)區(qu)資(zi)源(yuan)稟(bing)賦(fu)、技(ji)術(shu)水(shui)平(ping)和(he)經(jing)濟(ji)發(fa)展(zhan)水(shui)平(ping)存(cun)在(zai)差(cha)異(yi),國(guo)家(jia)在(zai)製(zhi)定(ding)投(tou)資(zi)政(zheng)策(ce)時(shi),應(ying)考(kao)慮(lv)給(gei)予(yu)各(ge)地(di)區(qu)一(yi)定(ding)的(de)自(zi)主(zhu)性(xing),采(cai)取(qu)國(guo)家(jia)製(zhi)定(ding)投(tou)資(zi)政(zheng)策(ce)指(zhi)導(dao)原(yuan)則(ze),各(ge)地(di)區(qu)依(yi)據(ju)此(ci)原(yuan)則(ze)結(jie)合(he)自(zi)身(shen)的(de)經(jing)濟(ji)發(fa)展(zhan)水(shui)平(ping),差(cha)異(yi)化(hua)地(di)製(zhi)定(ding)鼓(gu)勵(li)、限(xian)製(zhi)和(he)禁(jin)止(zhi)外(wai)商(shang)投(tou)資(zi)產(chan)業(ye)的(de)政(zheng)策(ce)。另(ling)一(yi)方(fang)麵(mian),地(di)方(fang)政(zheng)府(fu)主(zhu)管(guan)部(bu)門(men)應(ying)加(jia)快(kuai)清(qing)理(li)與(yu)降(jiang)低(di)投(tou)資(zi)壁(bi)壘(lei)和(he)投(tou)資(zi)政(zheng)策(ce)透(tou)明(ming)度(du)原(yuan)則(ze)不(bu)相(xiang)適(shi)應(ying)的(de)政(zheng)策(ce)規(gui)章(zhang),並(bing)逐(zhu)步(bu)廢(fei)除(chu)一(yi)些(xie)與(yu)促(cu)進(jin)投(tou)資(zi)自(zi)由(you)化(hua)的(de)國(guo)際(ji)規(gui)則(ze)相(xiang)衝(chong)突(tu)的(de)法(fa)律(lv)法(fa)規(gui),且(qie)進(jin)一(yi)步(bu)完(wan)善(shan)促(cu)進(jin)不(bu)同(tong)地(di)區(qu)各(ge)類(lei)產(chan)業(ye)投(tou)資(zi)相(xiang)適(shi)應(ying)的(de)自(zi)由(you)化(hua)規(gui)則(ze),同(tong)時(shi),還(hai)應(ying)加(jia)強(qiang)投(tou)資(zi)自(zi)由(you)化(hua)政(zheng)策(ce)的(de)對(dui)外(wai)宣(xuan)傳(chuan),及(ji)時(shi)對(dui)外(wai)公(gong)布(bu)鼓(gu)勵(li)、限製和禁止外商投資產業信息,並確保這些信息的國際傳播。
第di二er,調tiao整zheng稅shui收shou政zheng策ce優you惠hui方fang式shi,增zeng強qiang稅shui收shou政zheng策ce的de相xiang對dui有you效xiao性xing。稅shui收shou政zheng策ce反fan映ying了le政zheng府fu對dui企qi業ye與yu個ge人ren收shou益yi的de征zheng稅shui水shui平ping,因yin此ci,稅shui收shou政zheng策ce一yi直zhi是shi作zuo為wei世shi界jie各ge國guo引yin導dao產chan業ye資zi本ben流liu向xiang的de重zhong要yao手shou段duan。為wei了le提ti高gao國guo際ji先xian進jin產chan業ye和he生sheng產chan環huan節jie的de轉zhuan移yi效xiao率lv,應ying依yi據ju地di區qu特te征zheng和he產chan業ye的de特te性xing,采cai取qu多duo樣yang化hua的de稅shui收shou政zheng策ce優you惠hui方fang式shi。一yi方fang麵mian,應ying適shi時shi地di依yi據ju地di區qu和he產chan業ye政zheng策ce的de需xu要yao,協xie調tiao采cai用yong各ge種zhong稅shui收shou政zheng策ce優you惠hui方fang式shi。由you於yu間jian接jie稅shui收shou優you惠hui方fang式shi能neng對dui投tou資zi周zhou期qi長chang、風險高的資本與技術密集型產業帶來更為實際的政策優惠,因此,應逐步采取以加速折舊、虧kui損sun彌mi補bu等deng間jian接jie稅shui收shou優you惠hui方fang式shi為wei主zhu,促cu進jin資zi本ben和he技ji術shu密mi集ji型xing產chan業ye投tou資zi。另ling一yi方fang麵mian,政zheng府fu應ying依yi據ju地di域yu特te征zheng和he產chan業ye特te性xing製zhi定ding細xi化hua的de稅shui收shou優you惠hui政zheng策ce,並bing在zai地di區qu之zhi間jian、行xing業ye之zhi間jian和he生sheng產chan環huan節jie之zhi間jian體ti現xian稅shui收shou政zheng策ce優you惠hui的de相xiang對dui有you效xiao性xing。對dui於yu技ji術shu密mi集ji型xing的de先xian進jin產chan業ye或huo生sheng產chan環huan節jie,可ke賦fu予yu相xiang對dui於yu其qi他ta產chan業ye或huo生sheng產chan環huan節jie更geng為wei優you厚hou的de稅shui收shou優you惠hui,同tong時shi,為wei了le鼓gu勵li落luo後hou地di區qu吸xi引yin產chan業ye轉zhuan移yi,可ke適shi當dang獲huo得de相xiang對dui於yu經jing濟ji發fa達da地di區qu而er言yan更geng為wei優you厚hou的de稅shui收shou政zheng策ce,以yi提ti高gao稅shui收shou優you惠hui政zheng策ce在zai經jing濟ji落luo後hou地di區qu的de相xiang對dui有you效xiao性xing。
第三,創新商業交易製度,減少企業與政府之間的交往成本。為了更好地承接國際先進產業的轉移,中國應簡化對現代先進企業的創立、變bian更geng與yu退tui出chu生sheng產chan與yu經jing營ying活huo動dong的de授shou權quan與yu彙hui報bao程cheng序xu。首shou先xian,可ke以yi嚐chang試shi由you中zhong央yang部bu委wei出chu台tai各ge地di區qu審shen批pi外wai資zi企qi業ye的de原yuan則ze,並bing在zai各ge個ge級ji別bie的de行xing政zheng區qu劃hua單dan位wei設she立li審shen批pi機ji關guan且qie給gei予yu他ta們men與yu地di區qu經jing濟ji發fa展zhan規gui模mo相xiang應ying的de審shen批pi權quan限xian,且qie以yi法fa律lv形xing式shi加jia以yi固gu定ding。在zai國guo家jia對dui外wai商shang設she立li企qi業ye規gui定ding審shen批pi原yuan則ze的de條tiao件jian下xia,為wei了le鼓gu勵li直zhi轄xia市shi和he經jing濟ji發fa達da地di區qu承cheng接jie國guo外wai先xian進jin產chan業ye的de轉zhuan移yi,中zhong央yang可ke適shi當dang給gei予yu地di區qu政zheng府fu對dui於yu現xian代dai先xian進jin產chan業ye較jiao高gao的de審shen批pi權quan限xian。其qi次ci,盡jin可ke能neng簡jian化hua外wai商shang投tou資zi申shen請qing設she立li現xian代dai先xian進jin企qi業ye的de審shen批pi手shou續xu,增zeng強qiang審shen批pi的de透tou明ming度du和he提ti高gao審shen批pi效xiao率lv。審shen批pi機ji關guan可ke適shi當dang簡jian化hua外wai資zi的de審shen批pi和he聯lian合he年nian檢jian手shou續xu,實shi行xing“一站式”服務,且在經營期內,企業因投資總額和生產經營規模等發生變化而需減少、增加或轉讓注冊資本,或是將其
財產權益對外抵押、轉讓,以及政府商務、財政、工商行政管理、稅shui務wu等deng各ge部bu門men對dui外wai資zi企qi業ye實shi行xing聯lian合he年nian檢jian時shi,應ying提ti高gao行xing政zheng機ji關guan審shen批pi和he辦ban理li的de效xiao率lv和he透tou明ming度du,盡jin可ke能neng地di簡jian化hua辦ban理li手shou續xu,減jian少shao企qi業ye支zhi付fu行xing政zheng審shen批pi和he年nian檢jian的de成cheng本ben。再zai次ci,改gai變bian以yi往wang外wai商shang投tou資zi企qi業ye因yin經jing營ying期qi限xian滿man而er終zhong止zhi經jing營ying的de“一刀切”banfa,duiyuwaishangzaibenguotouzixiandaixianjinqiye,caiyongleisiyuneiziqiyedezhongzhijingyingdebanfa,kexianyouqiyepinyongqingsuanjigouchujujuyoufalvxiaoyingdeqingsuanbaogao,zaibaoshenpijiguanshenhe,shixianneiwaiziqiyezaishenpishouxushangdengtongduidai。
第(di)四(si),健(jian)全(quan)產(chan)權(quan)保(bao)護(hu)製(zhi)度(du),降(jiang)低(di)企(qi)業(ye)生(sheng)產(chan)與(yu)經(jing)營(ying)中(zhong)的(de)不(bu)確(que)定(ding)性(xing)。為(wei)了(le)有(you)效(xiao)引(yin)導(dao)國(guo)際(ji)先(xian)進(jin)產(chan)業(ye)有(you)序(xu)向(xiang)本(ben)國(guo)轉(zhuan)移(yi),我(wo)們(men)既(ji)要(yao)加(jia)大(da)知(zhi)識(shi)產(chan)權(quan)保(bao)護(hu)製(zhi)度(du)的(de)創(chuang)新(xin)力(li)度(du),又(you)要(yao)努(nu)力(li)提(ti)高(gao)人(ren)力(li)資(zi)本(ben)產(chan)權(quan)的(de)保(bao)護(hu)水(shui)平(ping)。對(dui)於(yu)知(zhi)識(shi)產(chan)權(quan)保(bao)護(hu)製(zhi)度(du)的(de)創(chuang)新(xin),一(yi)方(fang)麵(mian),應(ying)努(nu)力(li)完(wan)善(shan)知(zhi)識(shi)產(chan)權(quan)保(bao)護(hu)法(fa)律(lv),逐(zhu)步(bu)覆(fu)蓋(gai)當(dang)前(qian)法(fa)律(lv)條(tiao)文(wen)所(suo)不(bu)能(neng)含(han)蓋(gai)的(de)盲(mang)區(qu),並(bing)依(yi)據(ju)行(xing)業(ye)或(huo)生(sheng)產(chan)環(huan)節(jie)對(dui)知(zhi)識(shi)產(chan)權(quan)的(de)敏(min)感(gan)程(cheng)度(du)不(bu)同(tong),適(shi)時(shi)地(di)製(zhi)定(ding)相(xiang)關(guan)的(de)知(zhi)識(shi)產(chan)權(quan)保(bao)護(hu)法(fa)規(gui);另ling一yi方fang麵mian,應ying增zeng強qiang知zhi識shi產chan權quan的de執zhi法fa力li度du,加jia大da對dui侵qin犯fan知zhi識shi產chan權quan的de懲cheng罰fa力li度du,提ti高gao知zhi識shi產chan權quan侵qin權quan的de成cheng本ben。對dui於yu人ren力li資zi本ben產chan權quan保bao護hu,首shou先xian應ying適shi時shi地di修xiu訂ding與yu完wan善shan《勞動法》、《合同法》、《公司法》、《勞動合同法》等相關法律,消除這些法律法規中相互衝突的規則,加強法律之間的相互銜接與協調;其qi次ci,通tong過guo加jia大da相xiang關guan法fa律lv法fa規gui的de執zhi行xing力li度du和he拓tuo寬kuan覆fu蓋gai麵mian,確que保bao人ren力li資zi本ben交jiao易yi雙shuang方fang在zai平ping等deng互hu利li的de前qian提ti下xia,完wan善shan人ren力li資zi本ben產chan權quan的de交jiao易yi程cheng序xu,減jian少shao人ren力li資zi本ben交jiao易yi的de不bu確que定ding性xing;再zai次ci,大da力li發fa展zhan人ren力li資zi本ben市shi場chang和he建jian立li人ren力li資zi本ben市shi場chang交jiao易yi製zhi度du,擴kuo大da資zi本ben信xin息xi交jiao流liu渠qu道dao,提ti高gao人ren力li資zi本ben信xin息xi共gong享xiang水shui平ping,降jiang低di企qi業ye獲huo取qu人ren力li資zi本ben的de信xin息xi成cheng本ben,發fa揮hui反fan映ying人ren力li資zi本ben價jia值zhi的de市shi場chang機ji製zhi,保bao障zhang人ren力li資zi本ben產chan權quan,防fang止zhi人ren力li資zi本ben產chan權quan交jiao易yi“事前”和“事後”的機會主義行為,提高人力資本的利用效率。(作者 林長華 楊晶晶 單位:北京大學、湖南大學)