Definition: Given a disfluent sentence, modify the sentence to it to its equivalent fluent form, preserving the meaning of the sentence.
Input: What happens to the GDP growth of a country if the income share of the top 20 percent decreases, according to IMF staff economists no wait if the top 20 percent increases?

What happens to the GDP growth of a country if the income share of the top 20 percent increases, according to IMF staff economists? 