Are prices more changeable in a market economy or in a command economy? Why?

In a market economy, its better.

Explanation:

In a command economy, the government makes the decisions, and the changes. The prices would more possibly stay the same, due to that they want to make the government stronger. But in a market economy, the citizens have the power. Which means that the prices are more likely to change from time to time due to the popularity of the product.