Step 1: Identifying agents in a two-sector model.
A simplified two-sector economy consists only of households (owners of factors of production) and firms (producers of goods).
Step 2: Analyzing the direction of payment.
Households provide factor services (labor, capital, land, and entrepreneurship) to firms. In exchange for these services, firms must compensate the households. This compensation—consisting of wages, interest, rent, and profit—is known as factor payments.
Step 3: Conclusion.
Since the firms are the ones paying for the resources they use, the monetary flow of factor payments originates at the firms and moves toward the households.
Final Answer: firms, households.