In regards to deductivism and the work of Karl Popper, it's possible to deduce statements which are consistent with science's current understanding of something. These statements are hypotheses and some are testable, and hence scientific, and others are not testable, and hence they are unscientific.
It seems to me in economics the profession is fond of deducing many statements from their models which are untestable. What is the purpose of this exercise? What can be the goal of deducing untestable statements other than to eventually arrive at something which is testable? Is there a word for these untestable statements besides "unscientific hypotheses?"
Thank you.
Karl Popper thought that theories (hypotheses) could be tested by using them to deduce testable consequences. Many theories and hypotheses are quite abstract (physics and economics are good examples of abstract theories) and other assumptions are often needed in order to use them to deduce testable consequences. That's fine--the assumptions just need to be stated in advance and to be plausible. Popper would say that when e.g. economic theories are used to make predictions about the market, they are indeed testable, because the predictions can fail. Popper would have trouble with economists who make predictions which fail and who then don't take the failure seriously enough. Failed predictions point to the falsity of either the theory or the assumptions. Dogmatic scientists (those who want to defend their pet theories past the point of plausibility) always blame the assumptions, even when this is implausible. Popper urges scientists to consider blaming their own theories for failed predictions. If...
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Karl Popper thought that theories (hypotheses) could be tested by using them to deduce testable consequences. Many theories and hypotheses are quite abstract (physics and economics are good examples of abstract theories) and other assumptions are often needed in order to use them to deduce testable consequences. That's fine--the assumptions just need to be stated in advance and to be plausible. Popper would say that when e.g. economic theories are used to make predictions about the market, they are indeed testable, because the predictions can fail. Popper would have trouble with economists who make predictions which fail and who then don't take the failure seriously enough. Failed predictions point to the falsity of either the theory or the assumptions. Dogmatic scientists (those who want to defend their pet theories past the point of plausibility) always blame the assumptions, even when this is implausible. Popper urges scientists to consider blaming their own theories for failed predictions. If...
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