Macroeconomists test their theories using controlled economy-wide experiments of various kinds.

Macroeconomists

Macroeconomists specialize in the study of the economy as a whole, focusing on broad phenomena like inflation, unemployment, and national income.

Economy-Wide Experiments

Experimental approaches that investigate the outcomes of economic theories and policies on a broad scale, encompassing an entire economy.

Theories

Systematic sets of ideas intended to explain facts or phenomena, often forming the basis for further investigation or experiments.