Research can be by some economists.Logical formLearned from13 sentences. Economists may think.Logical formLearned from13 sentences. Economists may undergo surveys.Logical formLearned from13 sentences. A group can be constituted-of-or-filled-with academic economists.Logical formLearned from13 sentences. An economist can be in an office.Logical formLearned from13 sentences. Economists may object to suggestions.Logical formLearned from13 sentences. An economist can be in a region.Logical formLearned from13 sentences. Some economists can be sure.Logical formLearned from13 sentences. An economist can be optimistic.Logical formLearned from13 sentences. Economists may be puzzled.Logical formLearned from13 sentences. Economists may find evidence.Logical formLearned from13 sentences. An economist may signal that something-is-the-case.Logical formLearned from13 sentences. An economist can be nervous.Logical formLearned from13 sentences. Economists may call a negative externality.Logical formLearned from13 sentences. Some economists can be at a national-agency.Logical formLearned from13 sentences.