Which example is an economic property but not a law? "No stealing."
"Buy low and sell high."
"All exchanges must benefit both parties."
"Consumers and producers must agree on prices."

The correct option is;

Buy low and sell high

Explanation:

To "buy low and sell high" is a market strategy that involves the idea of buying stocks or goods or other financial instruments, when the market value is at the lowest, and sell when the prices are high or at their peak

That is a profit is made when traders buy stocks or goods at a price lower than they sell

The idea to buy low and sell high is aptly applied to stock market trading that have cycles of high and low prices. But it is also very much applicable to real estate and property, as these are more tangible items although they operate sometimes at a smaller scale.

idk the answer to this question