The the expenditures multiplier effect, the the change needed in government spending to bring about a given amount of increase in real gdp.

The MORE the multiplier effect , the LESS government spending needed to achieve given amount of GDP increase

Explanation:

Multiplier denotes the multiple times resultant increase in income ,  due to causal investment increase .

Multiplier 'k' = Change in Income ΔY / Change in Investment ΔI = 1/ (1-MPC). This happens because initial investment (Eg:100) increases income by same amount (100) .Then, portion of that income depending on MPC [Additional Change in consumption due to additional change in income] is spent on consumption (Eg : MPC = 0.5 implies 0.5 of change in Investment i.e 100 = 50 is spent on Consumption) . One person's expenditure is other person's income . So , 50 becomes additional income in second round. Similarly , 25 out of 50 is spent on consumption & becomes someone else's income in third round .

This keeps on happening till : Change in Income = 1/(1-MPC) i.e 1/0.5 = 2 times Investment Increase 100, and becomes 200 .

So , bigger multiplier would magnify smaller investment increase into a larger income increase & hence needs less investment to achieve income growth target.

answer; i believe the correct answer is (a) purchase of treasury stock;

the first successful, urban blues recording, selling more than 75,000 copies, was made in year 1920.

mamie smith recorded the first commercially successful example of the urban blues,   with the recording of “crazy blues”."crazy blues" was recorded on august 10, 1920, in new york city. within a month of the release of “crazy blues” it had sold 75,000 copies.