Answer:
a. Overstate b. Understate c. Understate d. Understate
Step-by-step explanation:
a. As the environment becomes dirtier, the broad standard of living declines, but it is not included in GDP. GDP includes final goods and services produced. So, here GDP will be overstated.
b. Similarly, the decline in crime rates are not included in GDP, though cause the standard of living to improve. So, here GDP is understated.
c. Availability of variety of goods improves the standard of living but is not included in GDP, so it is understated.
d. A decline in the infant mortality rate means the broad standard of living is improving. But since it is not included in the GDP, it is understated.