In one of the laws, Solon forbade the sale of bread abroad. Suppose which part of the population benefited from this law?

In one of the laws, Solon forbade the sale of bread abroad. Suppose which part of the population benefited from this law? Against whom is it directed?

Apparently, this law was beneficial to the peasants, since they had more food left for food. Likewise, the non-peasant poor could benefit from this. The urban population also benefited, since food prices were lower when there was an excess of food.
This law was directed against merchants and the aristocracy, since it significantly limited the abuse and machinations associated with the grain trade. A blow was dealt to the wealth of the upper strata of the population, for whom the grain trade was an important part of their economic well-being.