River Farm PPF: Corn and Soybeans

River Farm PPF — Corn and Soybeans

River Farm must split its arable land, operators and harvesting equipment between corn and soybeans. The two crops do not draw on those resources in exactly the same way, so shifting land from one crop to the other creates an opportunity cost. The frontier gives the maximum output combinations under the season's available capacity. The planting plan is a productive choice on the curve. The fallow-acres point is inside the curve because it leaves some land or machine time unused. This chart creates a concrete starting point for discussing why a farm cannot maximize both crops at the same time without adding productive resources.

유형 경제 그래프엔진 econ-ppf업데이트됨 2026. 9. 24.

요청 내용

“Create a PPF for River Farm with a maximum of 120 tonnes of corn or 90 tonnes of soybeans. Mark its planting plan at 80 tonnes of corn and 42 tonnes of soybeans, and a fallow-acres point at 45 tonnes of corn and 25 tonnes of soybeans.”

그렇다면Add an efficient point at 60 tonnes of corn and 62 tonnes of soybeans.Change the soybean maximum to 100 tonnes.

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그 이면의 의사결정을 읽어 보세요.

01Set the crop maxima

Base them on usable acreage.

02Mark the planting plan

Show the chosen output mix.

03Identify fallow acres

Separate underuse from a feasible plan.

Use this example for resource-allocation lessons involving land, labour and machinery.

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자주 묻는 질문

What causes the trade-off?

Land, labour and equipment are limited and shared by the two crops.

Is the planting plan efficient?

Yes, it is placed on the frontier.

What would shift this PPF outward?

More usable land, better yields or additional harvesting capacity could do so.