Before revision:  Our hypothesis is that people are reluctant to make actions described using words with a negative connotation, and are eager to make actions described using words with a positive connotation, independently of their economic consequences. As predicted, we find that the connotation of the word has a U-shaped effect on pro-sociality .
After revision:  As we predicted, we find that the connotation of the word has a U-shaped effect on pro-sociality .