Consider a hypothetical economy. Households spend $0.90 of each additional dollar they earn and save the remaining $0.10. The spending multiplier for this economy is . Suppose investment in this economy decreases by $200 billion. The decrease in investment will lead to a decrease in income, generating a decrease in consumption that decreases income yet again, and so on.

Explanation:

The spending multiplier is calculated by the formula:

= 1 / Marginal propensity to save

The marginal propensity to save is the proportion of every additional dollar that is saved which is this case is $0.10 which is 10%.

Spending multiplier is:

= 1 / 0.1

= 10

Change in consumption as a result of the decrease:

= -200 * marginal propensity to consume

= - 200 * 0.9

= -$180 billion

answer; correct answer is investing activity;

answer: a. the kind of population living in your neighbourhood.

the census explorer data tool by the us census bureau allows the user to zoom in on any neighbourhood within the united states and find the kind of people residing in that by race and age.  

the tool needs to needs to be used twice – once in order to find what type of people reside in a neighbourhood, and then to see the age groups of the people in the same neighbourhood.