This is a good intro by recognized researchers:

If you want me to be more precise, I would say that clientelism and tribalism are especially rewarded for politicians in a multi-ethnic society.

"Michael C. Moynihan reviewing the book for The Wall Street Journal stated that the writing style is similar to that of Freakonomics."

Ouch. If someone said that about a book I'd written, I would simply move to a forest and never write a single word again. Quite the damning review.

	▲	Saline9515 37 minutes ago \| parent [-]
		I told you that it was an intro. Here is the more serious book, by the same authors: https://direct.mit.edu/books/monograph/2425/The-Logic-of-Pol... And there is nothing wrong with vulgarization, aside from comments from pedantic HNers.