In current political discourse, it is common to think of the Democrats as the party of entitlements, but long-term trends seem to tell a somewhat different tale. From a purely statistical standpoint, the growth of entitlement spending over the past half-century has been distinctly greater under Republican administrations than Democratic ones. Between 1960 and 2010, the growth of entitlement spending was exponential, but in any given year, it was on the whole roughly 8% higher if the president happened to be a Republican rather than a Democrat.
Growth of government spending is not, for the most part, a consequence of rent-seeking special interests or narrow-minded bureaucrats looking to expand their turf. It’s a product of affluence. As people and nations get richer, they tend to be willing to allocate more money for insurance (protection against risks) and for fairness (extension of opportunity and security to those who are less fortunate).