Answer:
Oil
Explanation:
When overproduction occurred, it create a situation when the stock of the products far outnumbered the amount of people who are wiling to buy it. As a response, sellers started to reduce the price of the oil in order to make consumers more interested to buy it.
This caused a massive fall in oil price during the 1930s. Before the over production, the cost of oil at that time was around $ 1.88 / Barrel. After the overproduction, it became around 65 cents per barrel .
The totalitarian states usually don't allow any opposition parties to exist. If some people try to form a party, they usually end up in prison, are banished from the nation, or even murdered.
The reason why the totalitarian rulers prefer a one party system is in order to have all the power in the country, without having opposition that will constantly go public about the terrors and injustices that are happening. If there are more parties, than the people will start to support them, especially cause rarely who likes to live under a totalitarian ruler, thus the totalitarian ruler will face a situation where he/she will lose its power.
To become an ally. To import amd export goods to eachother amd better eachothers economies.
