07.09.2017 Views

David K.H. Begg, Gianluigi Vernasca-Economics-McGraw Hill Higher Education (2011)

Create successful ePaper yourself

Turn your PDF publications into a flip-book with our unique Google optimized e-Paper software.

CHAPTER 15 Introduction to macroeconomics<br />

Net property<br />

income<br />

from abroad<br />

Net property<br />

income<br />

from abroad<br />

Depreciation<br />

GNP at<br />

market prices<br />

(also GNI at<br />

market prices)<br />

G<br />

I<br />

NX<br />

c<br />

GDP<br />

at<br />

market<br />

prices<br />

Indirect<br />

taxes<br />

Rental<br />

income<br />

NNP<br />

Profits<br />

at Notional Income<br />

market income from selfprices<br />

(NI) = NNP employment<br />

at basic<br />

prices<br />

Wages<br />

and<br />

salaries<br />

Composition of Definition<br />

spending on GNP of GDP<br />

Figure 15.6 Summarizing the national accounts<br />

Definition Definition of Factor<br />

of NNP national income earnings<br />

some fairly heroic guesses sometimes about how much depreciation is going on. So far, our national<br />

accounts leave out depreciation of environmental capital. One day, if global warming proceeds enough, it<br />

will probably become essential to make explicit estimates for environmental depreciation. An economist's<br />

first thought should be that this would then reward governments that took action to reduce environmental<br />

depreciation.<br />

GDP at basic prices<br />

measures domestic output<br />

exclusive of indirect taxes on<br />

goods and services.<br />

The fifth column shows the role of indirect taxes. Measurements at market prices<br />

include indirect taxes in the statistics; measurements at basic prices remove them.<br />

The final column shows the net incomes that accrue to the inputs (or factors of<br />

production) used in making output. Total factor incomes arise from the supply of<br />

labour to earn wages and salaries, self-employe work, the supply of land to earn<br />

rent, or the supply of capital to earn profits.<br />

Understanding Figure 15.6 is a key step in mastering the definitions, confirming that they make sense, and<br />

checking that we have not left anything out.<br />

Revisiting the circular flow<br />

Using Y to measure GDP at market prices, the value added or net output of the economy is now:<br />

Personal disposable<br />

income is household income<br />

after direct taxes and transfer<br />

payments. It shows how much<br />

households have available for<br />

spending and saving.<br />

Y = GDP at market prices = C +I+ G + NX<br />

Household incomes at market prices are supplemented by benefits B less direct<br />

taxes Td. This gives us personal disposable income ( Y + B - Td).<br />

Assuming for the moment that saving is done only by households, disposable<br />

income must be spent on consumption or saving<br />

Figure 15. 7 shows the extended picture of the circular flow.<br />

Y+B-Td=C+S<br />

370

Hooray! Your file is uploaded and ready to be published.

Saved successfully!

Ooh no, something went wrong!