Puas tau nber tshaj tawm kev lag luam?

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Puas tau nber tshaj tawm kev lag luam?
Puas tau nber tshaj tawm kev lag luam?

Video: Puas tau nber tshaj tawm kev lag luam?

Video: Puas tau nber tshaj tawm kev lag luam?
Video: Yuav tawm ntawm txoj kev txom nyem tau li cas? 2024, Hlis ntuj nqeg
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Covid-19 kev lag luam tau xaus rau Lub Plaub Hlis 2020, National Bureau of Economic Research tau hais rau hnub Monday. Qhov ntawd ua rau ob lub hlis poob qis tshaj plaws hauv keeb kwm Asmeskas. NBER tau lees paub tias yog tus thawj coj ntawm lub sijhawm kev lag luam xaus thiab pib.

NBER kev poob qis yog dab tsi?

A: NBER cov lus txhais ib txwm muaj ntawm kev poob qis yog qhov nws yog qhov poob qis hauv kev lag luam uas tau nthuav dav thoob plaws kev lag luam thiab kav ntev tshaj li ob peb lub hlis … expansion yog lub sij hawm thaum kev lag luam tsis nyob rau hauv ib qho kev poob nyiaj txiag. Kev nthuav dav yog lub xeev ib txwm muaj kev lag luam; feem ntau kev poob nyiaj txiag yog luv luv.

NBER txiav txim siab li cas kev lag luam?

NBER cov lus txhais tau hais meej tias kev lag luam poob qis cuam tshuam nrog kev poob qis hauv kev lag luam uas tau nthuav dav thoob plaws kev lag luam thiab kav ntev tshaj li ob peb lub hlis.

Peb puas muaj kev poob qis tam sim no?

Peb Puas Muaj Kev Nyuaj Siab? Hauv tsab ntawv tshaj tawm NBER tsis ntev los no, lawv tau thov tiasyog, tam sim no peb tab tom muaj kev lag luam poob qis Qhov no yog vim qhov tsis tau pom dua hauv qib kev poob haujlwm thiab kev tsim khoom (qhov tob) uas tshwm sim los ntawm COVID-19 kis thoob qhov txhia chaw., ua ke nrog nws txoj kev ncav cuag thoob plaws tag nrho kev lag luam (diffusion).

Puas muaj kev poob nyiaj xyoo 2020?

Nws yog txoj haujlwm: Covid kev lag luam poob qis tsuas yog ob lub hlis, luv tshaj plaws hauv keeb kwm Asmeskas. Covid-19 kev lag luam tau xaus rau lub Plaub Hlis 2020, National Bureau of Economic Research tau hais rau hnub Monday. Qhov ntawd ua rau ob lub hlis poob qis tshaj plaws hauv keeb kwm Asmeskas.

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