Was the Treaty of Versailles a just and fair peace treaty or an unjust and unfair one, and why?

This depends on your view point. Apparently the Allies believed that the treaty was fair and just, but Germany did not. Personally, I think that the Treaty of Versailles was too extreme. Of course Germany had to be punished for war crimes and preventative measures had to be put in place so Germany couldn't try that again, but at the same time, if the treaty was less harsh it wouldn't have angered Germans to the point of electing the Nazi party. The German economy was already crashing and the decisions that were made in the treaty only worsened the entire establishment.

when a country suffers, for example, a drought period, the market product is affected for a low offer, in this case, potatoes; the government has to tax to the households, which have to give more money for the potatoes which they consume, that situation make them consume substitute goods even through loans, it could increase the financial market movement and the inflationary phenomena, the business has to increase salaries in order to the employees could buy a more expensive food (potatoes) and in order to inflation tha business had to buy expensive supplies in the factor market, while the rest of the world have to gain more money to consume the same amount of potatoes.

billygate was not one of the scandals