Samuel Bazzi, Martin Fiszbein, and Mesay Gebresilasse have a new NBER working paper on that theme, here is the abstract:
In a classic 1893 essay, Frederick Jackson Turner argued that the American frontier promoted individualism. We revisit the Frontier Thesis and examine its relevance at the subnational level. Using Census data and GIS techniques, we track the frontier throughout the 1790-1890 period and construct a novel, county-level measure of historical frontier experience. We document skewed sex ratios and other distinctive demographics of frontier locations, as well as their greater individualism (proxied by infrequent children names). Many decades after the closing of the frontier, counties with longer historical frontier experience exhibit more prevalent individualism and opposition to redistribution and regulation. We take several steps towards a causal interpretation, including an instrumental variables approach that exploits variation in the speed of westward expansion induced by national immigration inflows. Using linked historical Census data, we identify mechanisms giving rise to a persistent frontier culture. Selective migration contributed to greater individualism, and frontier conditions may have further shaped behavior and values. We provide evidence suggesting that rugged individualism may be rooted in its adaptive advantage on the frontier and the opportunities for upward mobility through effort.
I am very much a proponent of this line of reasoning.