why do we use U.S money as a measurment of development?

Answer 1

Its not really, but for ease of comparison internationally money tends to be listed in US dollars because for many years the US was the worlds leading economy.

Also George Bush would get to confused if we used another measure.

Answer 2

To make comparisons between countries you need to convert to a common currency. The dollar was chosen because it circulates in most countries so the exchange rate is well determined, and because a largest fraction of the people doing it used dollars. If the system were being set up today euros might be chosen instead.

Answer 3

The current system of doing business as been set by The world bank. USA has been the leading economy in the world. There are billions of USA $ in the whole world which are being used to buy petrol and goods in USA $ and USA have not enough other currency to buy back their own dollars. If a change of currency will ever happen we will see the 3rd world war as it crash the USA economy in minutes.