The supply-siders failed us all by not making a case against leviathan government. They never put forth a coherent voice addressing the key political question that our founding fathers grappled with at the constitutional convention: What should government do? The founders, such as John Adams and Madison, understood the suicidal tendencies of democracy and concluded that our liberty and prosperity depended on keeping government small and limited (see Ninth and Tenth Amendments); the supply-siders, by contrast, have been largely silent about the proper scope of government. Nor have they examined the question of the proper size of government from a more practical, utilitarian standpoint by asking the question: What does government do well? The answer to that question suggests a far more modest, constrained role for government.
What the supply-siders never realized was that supply-side economics has
been eclipsed by supply-side politics. The supply-side insight that supply
creates its own demand (Say’s Law) is every bit as true in the political realm
as in the economic. By making their services available to those who seek to
transfer wealth from other citizens to their own benefit, politicians have
tapped into a rich vein of political support.
Indeed, by supplying the service of enriching people
through the political process, politicians have unleashed a powerful tsunami of
demand for that service, and so government spending has continued to grow,
impairing economic growth. Unless we find a way to break
free from this self-destructive dynamic, our fiscal situation will someday come
to be seen as hopeless as Greece’s today. Will the next generation of
supply-side economists make amends for their predecessors’ negligence and stand
forth to be counted in this existential battle? We shall see.