So far, the international economic consequences of the war in the Caucasus have been fairly minor, despite Georgia’s role as a major corridor for oil shipments. But as I was reading the latest bad news, I found myself wondering whether this war is an omen  a sign that the second great age of globalization may share the fate of the first.

If you’re wondering what I’m talking about, here’s what you need to know: our grandfathers lived in a world of largely self-sufficient, inward-looking national economies  but our great-great grandfathers lived, as we do, in a world of large-scale international trade and investment, a world destroyed by nationalism.

Writing in 1919, the great British economist John Maynard Keynes described the world economy as it was on the eve of World War I. “The inhabitant of London could order by telephone, sipping his morning tea in bed, the various products of the whole earth ... he could at the same moment and by the same means adventure his wealth in the natural resources and new enterprises of any quarter of the world.”

And Keynes’s Londoner “regarded this state of affairs as normal, certain, and permanent, except in the direction of further improvement ... The projects and politics of militarism and imperialism, of racial and cultural rivalries, of monopolies, restrictions, and exclusion ... appeared to exercise almost no influence at all on the ordinary course of social and economic life, the internationalization of which was nearly complete in practice.”