I understand the Laffer Curve is controversial. I won't even use the Laffer Curve.
Governments—federal, provincial and municipal—share in the growth. You look at the revenues, the sensitivity in western economies, and Canada is exhibit A. That is to say, when the economy is growing, revenues gush. They just pour into the federal treasury, the provincial treasuries and municipal governments. Then go look at the impact on the revenues flowing into governments when they fall off of a cliff and go into a recession. Their revenues just disappear.
Governments are very sensitive to growth. The more governments grow, the higher the GDP growth rate in the economy, the more money flows into the treasury that can be then spent on health care, on social income support and so forth. Anybody who believes in more social income support should be screaming their support for economic growth, because it generates more money to spend on those policies.