Unlike the nominal GDP, economists calculate the real GDP of a country using the actual prices of commodities without considering inflation. However, when they calculate Nominal GDP, economists consider the output and prices of a country for a given year. That way, they have the total economic value of the country for the year under study.
As a result, as the price of goods increases or decreases in the year, the nominal GDP of a country will be affected. So, when you calculate nominal GDP, one is only trying to see the total value of outputs in a country’s economy.
On the other hand, since, economists ignore inflation when considering real GDP, it gives a better idea of economic growth. It compares the total volume of goods and services (economic output) of a country over a year using current prices. That way, it only gives an idea of the actual volume of production in a given country.
Tofauti na Pato la Taifa la Kiasi cha Chini (PIB) la kawaida, wataalamu wa uchumi wanahesabu Pato la Taifa la kweli la nchi kwa kutumia bei halisi za bidhaa bila kuzingatia mfumuko wa bei. Hata hivyo, wakati wao kuhesabu nominal GDP, wachumi kuzingatia uzalishaji na bei ya nchi kwa mwaka fulani. Kwa njia hiyo, wana thamani ya jumla ya kiuchumi ya nchi kwa mwaka unaochunguzwa. Kwa sababu hiyo, wakati bei ya bidhaa inapozidi au kupungua katika mwaka, Pato la Taifa la Kiasi cha Nchini (PIB) linaathiriwa. Kwa hiyo, unapohesabu Pato la Taifa la Kiasi cha Chini, mtu anajaribu tu kuona thamani ya jumla ya pato katika uchumi wa nchi. Kwa upande mwingine, kwa kuwa, wachumi hupuuza mfumuko wa bei wakati wa kuzingatia Pato la Taifa halisi, inatoa wazo bora la ukuaji wa kiuchumi. Inalinganisha jumla ya bidhaa na huduma (matokeo ya kiuchumi) ya nchi zaidi ya mwaka kwa kutumia bei za sasa. Kwa njia hiyo, inatoa tu wazo la kiasi halisi cha uzalishaji katika nchi fulani.