The formula for the multiplier is 1 / (1 - MPC), whereby MPC represents the marginal propensity to consume. Applying the formula to our case, we get: M (multiplier) = 1/(1-0.8) = 1/0.2 = 5. The multiplier in this economy is therefore 5.
from this question, this mayor has only given us the estimated proportion of the rate of unemployment for these months. In order to know if it is significant or not, we have to carry out other tests such as the hypothesis testing for the population proportion. But here we do not have any sample data or population data with which we can use to test this significance. The sample size is unknown so we cannot proceed to test if the claim is significant or not.
Inventories are part of investment and therefore included in GDP because firms produce goods and these goods may be unsold at the time GDP is computed
The value added method of calculating GDP recognizes inventory. Value added from raw materials to work in process and to finished goods are part of what goes into the computation of GDP
