Why did the power of chiefs decline?

The document shows a personal allowances worksheet. this document is part of a

How can changes in technology or consumer demand make it difficult for people to get jobs? by changing the number or kind of jobs available by making it possible for some people to work fewer hours by making it difficult for people to buy what they want by creating a demand for things that are not available

Nepal is the common garden of different caste ethnic groups language and culture briefly explain the statements