economic methods and economic questions Flashcards
scientific method (2)
developing models that explain some part of the world
testing those models using data to see how closely the model matches what we actually observe
model
simplified description of reality
predictions that can be tested with data
empirical evidence
facts that are obtained through observation and measurement
causation vs correlation
one thing directly affects another vs two variables tend to change at the same time
why isn’t correlation the same thing as causality? (2)
omitted variables
reversed causality (opposite direction)
how to find the difference between correlation and causality
experiment
experiment (controlled vs natural)
controlled method of investigating causal relationships among variables
controlled: randomly put into treatment and control groups
natural: assigned subjects to control and treatment groups (before and after event)