Didier Ratsiraka in 1978-1991.
Economic influence on the job market. People can afford less once they don't have a job. This is one way how the demand for goods and services can shift. Once you don't have enough oney to buy certain goods, the demand for these goods shifts and becomes lower.
On the political front, Americans sought to expand their role in world affairs. World War 1 also led to the rise of the “Lost Generation.” This was a generation that had become disillusioned with the ideals and values of American consumer culture and political democracy.