Answer:
D. The output of the United States.
Explanation:
Macroeconomics is a branch of economics that deals with aggregate economy as a whole. The focus of macroeconomics is primarily around large economics issues such as inflation,Gross Domestic Product (GDP), foreign exchange, unemployment, e.t.c. On the other hand, microeconomics deals with economic decision making of individual and firms. Issue likes production, pricing and consumer budget are the focus.
Now with the question, Option A is wrong to be classified as macroeconomics issues because it points at family budgets which is not an issue of aggregate economy. Family budget is purely an issue of microeconomics.
Option B is also wrong to be in the context of macroeconomics. Deciding how many pairs of shoes to buy is entirely an individual economic issue.
Option C is wrong as well because it deals with demand and supply related issue of price, which is an economic issue for firms, and not aggregate economy.
Option D is correct as a topic of macroeconomics because it is related to the aggregate economic issues of national output of the economy of United States. Topics like output of the United States will be discussed within the context of Gross Domestic Product (GDP), which is a macroeconomic issue.
Answer: Deepening the Savannah harbor will also allow neo-Panamax ships to call on the port with heavier cargo loads. This will lower fuel and transportation costs netting the nation hundreds of millions of dollars per year in savings to the economy. The benefits of the completed SHEP will be $7.30 for each $1 invested in the deepening.
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