What did supporters of laissez-faire claim?

In any regard, supporters of laissez-faire governmental policies were often advocates for the "free market". They would suggest that federal or state involvement in business would stagnate and decelerate the growth of the economy. The "invisible hand" of the market does not actually exist, but this argument would be made in order to support the assertion that government involvement was not required. In reality, significant economic downfalls of the past could have been avoided, had the governments of "unregulated business" nations played a more active role. Claims such as these were made for the purpose of promoting a self-sustaining economy, even when such a thing cannot coexist with financial disparity.

I hope this helped you understand the motives behind laissez-faire business and government policies. Blessings to you.

interdependence is when all participating groups and individuals depend on each other. if you depend on one anothers goods, you end up trading in order to get the items you're looking for. (for ex: if i have food and you have water, we trade in order to depend on each other to live)