Why are US-based large-capitalization stocks often easier to analyze than smaller-capitalization and/or emerging market stocks?

Question:

Why are US-based large-capitalization often easier to analyze than smaller-capitalization and/or emerging market Stocks
Stocks or shares are generally equity instruments that provide the largest source of raising funds in any public or private listed company's. The instruments are issued on a stock exchange from where a large number of general public who are willing...