How did the spending habits of Americans change during the 1920s? People began saving more of their money. People began to invest money in land. People began buying goods on credit. People began to spend more on education.

Ifound this on google “the existence of agglomeration economies is central to the explanation of how cities increase in size and population, which places the phenomenon on a larger scale. the concentration of economic activity in cities is one reason for their development and growth.” i hope this you for what your looking for.