Isingeniso

Intengo-Benefit Analysis (CBA) iye yaba isisekelo sentuthuko yesimiso somphakathi esisekelwe ebufakazini, inikeza uhlelo oluhleliwe lokuqhathanisa izindleko ezigcwele zezenhlalo nezinzuzo zokulawula nokusebenzisa izinqumo. Ngokuguqula imiphumela ehlukahlukeneyo ibe yi-metric yemali evamile, i-CBA ivumela abenzi bezimiso ukuba bahlole ukuthi ukungenela okuhlongozwayo kuyoletha inzuzo yomphakathi njengendawo ephelele. Ukusebenza kwayo kuveza imithetho yendawo ezungezile, impilo nezindinganiso zokuphepha, imisebenzi yezakhiwo, nezinguquko zezezimali. Nakuba kunjalo ukusetshenziswa kwayo okuhlukahlukene, i-CBA ayinazophikiswana impikiswano — ukuncintisana, ukubheka izimpahla ezithenjiswe i-intengo, kanye nokuphatha i-earctiveal iqhubeke ukulungisa kwayo. Lesi sihloko sinikeza ukuhlola okuphelele kwe-CBA ehlelweni kwezimiso zomphakathi: izindlela zokusebenza, izinhlelo ezisebenzayo, izinselele ze-cropotiss.

Isisekelo Esingokomlando Nesesisekelo

Imvelaphi Kwezomnotho Zezimo Ezinhle

Isisekelo sokuhlakanipha kokuhlola izindleko zemali encitshisiwe sisekwekwekwe ezomnotho nasemqokamweni wezenhlalakahle — ngokuvamile okubhekiselwa kuwo njenge-Kaldor-Hicks memorial. Ngokwesimiso, isimiso sibhekwa njengesiphumelelayo uma inzuzo yokuzuza inkulu ngokwaneleyo ukukhokhela abahlulwayo, ngisho noma intengo ingakhokhwa ngempela. Lokhu kunikeza ukusuka kwe-pareto eqinile engcono, okudinga ukuba kungabikho muntu owenziwe ngaphezulu kakhulu. Izinhlelo zokuqala zeCBA zavela eUnited States phakathi nenkathi entsha yokulawula, ikakhulukazi phakathi neU. Umkhosi we-Grangey wokulinganisa i-Pinjini yokulawula izikhukhula. Ukulawula u-Egemsrango kudinga izinzuzo ezingaphezulu, ukumiswa kohlelo lokuqala lwezezomnotho.

Ukukhula Kweziqondiso Eziyinkimbinkimbi

Phakathi namashumi eminyaka alandelayo, izinhlangano zikahulumeni nezinhlangano zomhlaba wonke zalungisa i-CBA travolution. IHhovisi loManyano noHlawulo lwe-Drama (OFLT) lakhipha Ngokucubungula A-4 ngo- 2003, elinikeza isiqondiso esiningi sokuhlola ukuhlelwa kabusha, kuhlanganise nokululaza, ukuphathwa kwengozi, kanye nokulinganiswa kwezimpahla ezingekho emakethe. Ngokufanayo, i-Promita yaseYurophu ye-A.[FLT] I-ART Ingcono kakhulu i-Toolbox [ kanye neBHANGEZILE] yemali emkhankanyeni wemisebenzi yezentengo ye-CFLT].

Izingxenye Zokuhlaziya Izindleko

Izindleko Nezinzuzo Zokubona Izindleko Ezizihlukanisayo

Isinyathelo sokuqala kunoma isiphi i-CBA ukuhlelwa kohlu olugcwele lwemiphumela inqubo ezoba nayo. Izindleko zihlukaniswe phakathi:

  • Izindleko: Izindleko zokusetshenziswa, njengokwakha, ukuphoqelela, noma izindleko zokuphatha.
  • Izindleko eziqondile: umphumela wezezomnotho ophakathi, kuhlanganise nokwehla komkhiqizo noma ukushintsha kwendlela yokuziphatha kwabathengi.
  • [ Izindleko ze-opportituni: Inani lemithombo yemali esetshenziswayo esimisweni esingathunyelwa kwenye indawo.

Izinzuzo ezifanayo zithuthukisa ngokuqondile — njengokuncipha kokufa, ukuvuleka kwezimo zokulima, noma izikhathi ezimfushane — kanye nokuzuza ngokungaqondile, kuhlanganise nezinkonzo ezithuthukisiwe zemvelo noma impilo yomphakathi ethuthukisiwe.

Ukuthambisa I - monetic and activation techniques

Ukuze kuqhathaniswe ama-apula namawolintshi, abahlaziyi kumelwe banike inzuzo yemali kuyo yonke imiphumela. Izikhangiso zinikeza amanani ezinto ezithengiselwayo, kodwa ithonya elikhulu — njengenani lokuphila kwezibalo (VSL), injabulo ephambili yendawo engokwemvelo, noma ukulondolozwa kwempucuko — ayinayo intengo ecacile yentengo. Abahwebi bezentengo basebenzisa izindlela zokubala ezicacile:

  • Okuthandwayo okuxeshiwe: Kuthathwe ekuziphatheni kwangempela, umz., ihedonic princing (indlela amanani empahla abonisa ngayo izinga lomoya).
  • Izinqubo ezisekelwe ku-sesthrome se-stude thisting ezinje i-'FLT'
  • Ukudluliswa kwe-Benefit: kuvumelanisa izindinganiso kusukela kufundo olukhona kuya kumongo wenkambiso.
  • i-pring: Ukulungisa amanani entengo ukuze kubonise ukuntuleka kwangempela kwezenhlalo noma okungaphandle.

Inani Elingatholakali Nenetha

Ngoba izindleko nezinzuzo zenzeka esikhathini esihlukene, amanani esikhathi esizayo amele ancishiswe kumagama akhona manje. Ukukhethwa kwenani lenani lokubala kuphakathi kwe-CBA. Izinga eliphansi libeka ubunzima obukhulu ezizukulwaneni ezizayo, ukusekela imisebenzi ngezinzuzo zemvelo noma zezempilo ezibambekayo; amalungelo aphakeme kakhulu abuya ngokushesha. Izinhlangano zikahulumeni eziningi eUnited States zitusa ukusebenzisa kokubili 3% no 7% wenani lokuncitshiswa kwenani lokuhlola i-A. I-NMBPV ilinganiswa njengenani lenzuzo engancitshisiwe. I-NPV ibonisa ukuthi isimiso somphakathi siwusizo ngaphansi kwe-Kaldor-H.

Ingozi Nokungaqiniseki

Izimiso zezwe langempela zibhekene nokwaziswa okungaphelele nokungahleleki okuzuzwe njengefa. Ngakho - ke ama-analyst kumelwe ahlanganise ukungaqiniseki okuphelele:

  • [[QULT:0] Ukuhlaziya kokuqinisekisa: Ukwenza kube nokunye okubalulekile ukubona ukuthi imiphumela ishintsha kanjani.
  • Izilinganiso ze-Carlo:[ Ukusakaza kwamathuba okushintsha-shintsha njengenani lenani lenani lokuhlenga-hlengisa noma izilinganiso zezindleko.
  • Izinketho zangempela ukuhlaziya: Ukuvumela ukuvumelana nokuvumelana nenqubo ekusabeleni ekwazisweni okusha.

Indima yeCABA Ekwenzeni Isinqumo

Ukuklama Imithombo Yengcebo

Enkathini yokulawula imali ecindezelwayo, iCBA isiza ohulumeni ukuba babeke phambili imali eveza izinzuzo ezinkulu kakhulu zemali echithwayo. Ngokwesibonelo, i-Environmental Protection Agency (EPA) ye-U.S. isebenzisa i-CBA njalo ukuthethelela imithetho emikhulu yomoya neyohlobo lwamanzi. I-Ceane Air Act Act ka-1990, ngokwesibonelo, ilinganiselwa ukuthi iletha izigidi zezigidi zezigidi zamadola emalini ezisiza empilweni ngengxenye yezindleko. Ukuhlelwa okunjalo kunikeza i-science sholow engokomnotho ukuze kuthethelelwe ukulawulwa nokulwa kwezenzo zobuqili.

Ukulandisa Nokubona Kahle

Abenzi bemithetho yokulawula ukuze balungise izinqumo zabo nokudalula izinto ezingekho. Lapho imiphumela yenziwa umphakathi, abaxhasi bezentengiselwano — kuhlanganise namaqembu emboni, inzuzo, nemiphakathi ethintekile — bangahlola isisekelo sobufakazi. Lokhu kubonakala kunganciphisa ukuthunjwa komthetho futhi kwandise ukwethenjelwa komphakathi. Amazwe amaningi manje adinga ukuhlolwa okulawulayo okuhlanganisa isitho seCBA ngaphambi kokuba inqubo ithathwe.

Ukulinganiselwa Ekwenzeni Isinqumo Sezombangazwe

ICBA iyithuluzi, hhayi isahlulelo. Ukucabangela kwezombangazwe — njengokusakaza ukulingana, izigunyazo ezingokomthetho, noma izimfuneko zokuziphatha — kungadlula ukuhlaziya kwe-NPV-Fiversect. Ngokwesibonelo, isimiso esinikeza izinzuzo zenetha jikelele kodwa siphoqelele izindleko ezinzima emphakathini osengozini kungase kwenqatshwe ngezizathu ezingokomthetho. Ukuqaphela lemingcele kubalulekile; iCBA kumele yazise, ingathatheli indawo, ukucubungula kwentando yeningi.

Izindlela Zokwenza I - CBA

Ukuhlaziya Okubangela Ukwehluleka

Lapho ukwaziswa kuvumela, i-quantitive CBA yabela amanani kuzo zonke izindleko nezinzuzo ezinkulu. Lendlela inikeza ukunemba futhi ivumela ukuqhathaniswa okuqondile phakathi kwezimo ezihlukile. Nokho, kungaba okunikeza inzuzo futhi kunganikeza iqiniso ngamanga uma ukwaziswa okuyimfihlo kungantenga. Ukugqugquzela ukuhlanganiswa kwenjabulo kusukela enjabulweni kuya ekulahlekelweni kwezinhlobonhlobo kuyaqhubeka kuveza intuthuko yezindlela nempikiswano.

Ukuhlaziya Okungakhi Nokwakheka Okuxutshwe

Ngezimiso ezinemiphumela engaqondakali noma engokomdabu ephawulekayo — ngokwesibonelo, ukugcina ifa lomdabu — ukulinganisela isilinganiso kungaba okungafanele noma okungenakwenzeka. Ukuhlaziya kongakhi kunezela izinombolo ezinezincazelo ezilandisayo, i-particerings, ubufakazi, nokuhlela izenzakalo. Indlela exubile yokuhlanganisa ukuqina kwe-quantative CBA kanye nokuceba kokuqonda okune-athonsity, ngokuvamile okuveza ukutusa okungaqondakali kakhulu. Izinhlangano eziningi zentuthuko emhlabeni wonke manje zitusa ukuxubana kwe-mathiwe-mathiods njengomkhuba ongcono kakhulu.

Ukuhlaziya Okubizayo (CEA) Njengomsizi

Ezimweni lapho izinzuzo zingenakusetshenziswa khona ngokunenzuzo, ukuhlola okubizayo kunikeza enye izindleko. I-CEA iqhathanisa izindleko zokufinyelela umphumela othile ongewona i-monetary (isibonelo, inani labantu abasindayo, amathani ekhabon encishisiwe) phakathi kwezinketho zesimiso. Nakuba i-CEA ingakwazi ukuthola ukuthi izinzuzo zenqubo zidlula izindleko zayo ngamagama, isiza ukuhlukanisa indlela ephansi kakhulu yokufinyelela umgomo onikeziwe.

Izinselele Nezimo Eziphikelelayo

Ubungako Bokwaziswa Nokutholakala Kwayo

I-CBA ingcono kakhulu kunemininingwane eyisebenzisayo. Ezimisweni eminingi — ikakhulukazi emazweni asathuthuka noma kubuchwepheshe obuqanjiwe — ukwaziswa okunokwethenjelwa kunqamuka. Ama-analyst angaphendukela kumaphepha okuvota noma ukukhipha ochwepheshe, ukuveza izihloko. Ngisho nasezimisweni ze-data ephambili, amaphutha okulinganisela kanye nezinguquko ezingafakwanga kungaguqula imiphumela.

Ukuvinjelwa Kwezinto Ezingaqondakali Nenhlalakahle Engeyomuntu

Abagxeki baphikisa ngokuthi ukubheka izinto ngokubaluleka okunjalo njengokungaqiniseki ngokwezimiso zezindinganiso zezizukulwane ezincane noma ezizayo. Ukusetshenziswa kwe - VSL eqhubekayo kubantu abahlukahlukene kuphakamisa ukukhathazeka okungahleleki — i - VSL ephansi kubantu abadala noma abampofu ingasho ukuthi izimiso ezibavikelayo azinasizathu esizwakalayo.

Ukuhlukanisa Nokubambisana

Ukukhethwa kwenani lenani lentengo kunemiphumela enzima yezimiso zezikhathi ezinde njengokushintsha kwesimo sezulu. Ukuncishiswa kwezinga elivamile ngesilinganiso esiqinile kunciphisa kakhulu inani lezinzuzo ezenzekayo manje kusukela manje, ngokunokwenzeka kuthethelela ukungathathi hlangothi. Izazi zezomnotho eziningi nezazi zefilosofi zisekela ukuncipha kwenani lenani noma ukuvinjelwa kwezimiso zokuhlenga ukuqinisekisa izizukulwane ezizayo ukuthi azincishiswa. Lokhu kungathiya okusemqoka kwengxoxo ngenani lecarbon.

Ukuzitika Kwezombangazwe Nezimo Eziphambili

Ngenxa yokuthi i-CBA ingaba yinkimbinkimbi ngokwesayensi, ingasetshenziswa amaqembu enzalo noma izinhlangano ukuze ziveze imiphumela enqunyiwe. Inzuzo engcono, ukukhishwa kwezindleko ezinzima, noma ukubika okukhethayo kungalulaza ukufihla imibandela. Isivikelo — njengokuzihlola okuzimele, iziqondiso ezihleliwe, kanye nezinkulumo zomphakathi — kusiza ukudambisa lezingozi kodwa akunakuziqeda ngokuphelele.

Izithobo zangempela kanye nezifundo ze-Case

Ukubuyiselwa Kwendawo Ezungezile E - United States

Imiphumela yokulawula ye-EPA yeMigangatho ye-Mercury ne-Air Toxics (MATS) kanye ne-Cross-mount Delphise Solution Inikeza izibonelo ezifundisayo. Yomibili imithetho yasebenza i-CBA eqinile, nezinzuzo ezivame kakhulu ezibangelwa yizinto ezinciphileyo ezilula (PM2.5) — umphumela ongahlolwanga ngokuqondile kodwa obalulekile. Abagxeki bamangalela ukuthi le nhlangano ikhuthalele impilo engcono ukuze ithethelele izindleko ezibekwe engxenyeni yamandla. Impikiswano iqokomisa ukushukuma kwemigomo eqondile kanye nenzuzo yempilo yomphakathi.

Imisebenzi Yokuhlanganisa Izinto Nempikiswano Yejubane Eliphakeme

Imisebenzi emikhulu yokuhamba ixhomeke ku-CBA ekulondolozeni imali kanye nokusekela umphakathi. Ngokwesibonelo, umsebenzi wesitimela esinejubane elikhulu eCalifornia, uye wabukeza isilinganiso senzuzo ngokuhamba kwesikhathi, kusukela ku-1.0 kuya ku-2.0 kusuka ku-2.0 kuya ku-2.0 kuxhomeke ekulinganiseni i-etasktis, isikhathi sokuhamba okugciniwe, nokuchitheka kwezomnotho. Izibalo ezishintshayo zigcizelela ukuqaphela iCBA ezicashiswe ngokwezimo eziphansi nokubaluleka kwemibono ekha phezulu.

Ukulawula Isimo Sezulu Nezindleko Zekhabhoni

Mhlawumbe ukusetshenziswa kwe-CBA okuvelele kakhulu muva nje yintengo ye-carbon (SCC), isilinganiso senani lemali engaphezulu yenani lemali edaliweyo ebangelwa ukukhipha elinye ithani le-CO2. I-Interagincy Working Group kahulumeni wase-U.S. ibala i-SC ehlukahluka kakhulu ngokwenani lenani lenani lenani eliphansi, ukufinyelela cishe ku-R3% ngenani. Lokhu kuthonya izinga lezentengozomnotho, imithetho yezemishini yamandla, kanye nezicelo ze-carbonbon. Nokho, i-SCC iye yagxekwa ngokuncishwa kwayo ngezithombe ezihlanganisayo ezingasehlela izingozi eziyingozi nezingathwaliyo zokuhlola okungalelwayo, futhi ngenxa yokuphatha kwayo isilinganiso esingu-athonsi naku.

Iziqondiso Zesikhathi Esizayo Ze - CBA Zokusetshenziswa Komphakathi

Izisindo Ezishintshayo Zokwehlukana

I-CBA yendabuko ingu-screennomethius ukuthi ubani othola izinzuzo futhi othwala izindleko, ihlola kuphela izinzuzo ze-aglerite. Umsebenzi okhulayo uveza ukusetshenziswa kwezisindo ezinikeza amandla amakhulu ekuthinteni ukuphumelela okuphansi noma amaqembu angaphansi. Nakuba kucatshangelwa ukuthi ukusetshenziswa kwalezi zinqumo kudinga isahlulelo esibalulekile ngemisebenzi yezenhlalakahle yezenhlalo — nakuba kunjalo, abahlaziyi abaningi bamelana nenyathelo.

Ukuthutha Okuzinzisayo Nezimpawu Ezingangeni Ethunjini

Ngaphezu kwe-GDP kanye nabathengi abagcwele, ukuhlola kwesimiso kucabangela imingcele yendawo ezungezile, ukukwazi ukuzimela, nokusiza. Ukuhlaziya izinqumo eziningi (MCDA) kanye nezikhombi zentuthuko yangempela (GPI) kunikeza amapulani ahlanganisa imininingwane ehlanganisayo ne-equalitive. I-CBA inganezelwa ngezindlela ezinjalo zokuthola izilinganiso ezimelana nokukhubazeka kwemizwa, inikeza umfanekiso ocace kakhulu wemiphumela ye-socinethi.

Intuthuko Kwezomnotho Nezokungaqiniseki

Ukuqonda kokuziphatha kubekela inselele i-projects enengqondo esekela i-CBA evamile. Abantu babonisa ukulahlekelwa, ukuncishiswa kwentengo, nemiphumela e-openthic, engathinta inzuzo yemiphumela yenqubo. Izindlela ezintsha zivuleka ukuze zihlanganise imigaqo yokuziphatha ezilinganisweni ezizuzisayo. Ngokungakodwa, intuthuko ekufundeni imishini kanye nesithembiso esikhulu sokuthuthukisa ukubikezelwa kwezindleko nezinzuzo, nakuba ziphakamisa izinselele ezintsha ngokukhanya nobandlululo.

Isiphetho

Ukuhlola izindleko kuseyithuluzi elibalulekile lokuthuthukisa isimiso somphakathi, ukunikeza izindlela ezihleliwe zobufakazi zokuhlola ukuthi izenzo ezihlongozwayo ziyothuthukisa inhlalakahle yezenhlalo yini. Izisekelo zayo zezentengiselwano, zicwengisiswe ngamashumi eminyaka ezisebenzile, zinikeza uhlelo oluqinile kodwa oluthambile. Ngesikhathi esifanayo, i-CBA ayiyona i-pancacea. Izinselele ze-memorive, ukulinganiswa kwezinga, ukulinganiswa kwenani elifaneleyo, ukuncishiswa kwezenzo zomphakathi, ukuncishiswa kwezizukulwane ngezizukulwane, nokusetshenziswa kwezentengosi ezisekwe kwezombangazwe kudinga ukuqapha okuqhubekayo nokuthuthukiswa kwezindlela ezingokwezentengiselwano zezentengo yeze yezembulunga yonke. Ngokuqaphela izindleko zayo nokuncishiselwa kwazo ngokuhlola, izindleko zokusebenza kwemisebe yomphakathi, futhi abenzi bezimiso zokukhokha izakhiwo zeCBA uma zikhona lapho bekhetha khona kakhulu. Enkathi esiyinkimbinkimbi sezokushintsha kwezokusebenza kwezesayensi zezesayensi zezentengo embuluko — ukuhlele ukuthi ziyo imithombo yemali elungele uku