what makes countries rich or poor

Paper details:
Jared diamond states that insitutions “perhepas ….provide 50 percent of the explanation for national differences in prosperity” ? ?With geography being the most significant alternative factor, how compelling do you find this claim? Explain

Professor will check this paper as Turn it in .com , So please write your opinion creatively and professionally.(Over 300 words will appreciate)

http://www.nybooks.com/articles/archives/2012/jun/07/what-makes-countries-rich-or-poor/