facility noun (PLACE). âº [C] something such as a âplace, âbuilding, or âequipment used for a âparticular âpurpose or âactivity: The new âsports facility has a âswimming âpool. (Definition of facility from the Cambridge Academic Content Dictionary Â© Cambridge University Press).acility noun (PLACE). âº [C] something such as a âplace, âbuilding, or âequipment used for a âparticular âpurpose or âactivity: The new âsports facility has a âswimming âpool. (Definition of facility from the Cambridge Academic Content Dictionary Â© Cambridge University Press).
While economists cloak their views in the aura of science, what they actually do is make assumptions about the world, use those assumptions to build imaginary economies (known as models), and from those models generate conclusions.
Economists design theories then test them by collecting real date. The economists laboratory is the world around us; it ranges from the economy as a whole to the decisions that firms and individuals make. A good model should be simple to understand, flexible in design and able to make powerful predictions.