Concept:
- Every economy must answer three basic questions with its limited resources: what to produce, how to produce, and for whom to produce.
- The Production Possibility Curve (PPC) is the standard tool used to show how an economy must trade off between two categories of goods with a fixed set of resources, which is exactly the situation described here.
Step 1: Recognise the type of choice being described.
Choosing between producing more consumption goods, used directly by people, and more investment goods, machines, tools and factories used to expand future output, is a choice about which category of goods, and how much of each, the economy should manufacture with its limited resources.
Step 2: Connect the choice to the PPC.
On a Production Possibility Curve with investment goods on one axis and consumption goods on the other, a country can only move to a point with more investment goods by giving up some consumption goods, and vice versa. This trade-off along the curve is the graphical picture of the what-to-produce-and-in-what-quantities problem.
Step 3: Separate this from the other two basic questions.
The how-to-produce question is about choosing a production technique, for example machines versus labour, for a good that has already been decided upon. The for-whom-to-produce question is about distributing goods that have already been made among different income groups. Neither question is about choosing between goods categories in the first place.
Step 4: Match to the given options.
Since the question is about deciding the mix and quantity of consumption versus investment goods, and not about technique or distribution, it belongs to the what-to-produce category.
Final Answer: What to produce and in what quantities?