Which of the following demonstrates a leader’s commitment to duty

Explain at least three factors economists consider the measurement of success, or shortcomings, of the economy? and give examples.

Give an example to prove that your society is developed more than it was before 10 years ?

Why are the majority of the world's economies mixed? what may happen to the "pure" types of economies (traditional, socialist/command, market capitalist) when they incorporate elements from other economic models?