Links between the Mises Circle and Geneva deepened when Haberler was appointed in May 1934, on Hayek's recommendation, to write the follow-up volume to Ohlin on theories of business cycles and the Depression. As we saw in Chapter 1, Haberler used the model of the spaceless world to build his analy­sis, equating tariffs, distances, and the actions of or­ga­nized ­labor as comparable obstacles to the optimal distribution of the world's resources. Even if he was unsuccessful in proving it scientifically, he saw it as a ­matter of fact that business cycles could be internationalized. "For a hundred years or more," he wrote, "the economic connections between most countries in the world, industrialized countries as well as agricultural and raw-­material producing countries, have become so intimate and international trade so impor­tant for the vari­ous national economic systems that a closer connection between the ups and downs of the business cycle in dif­fer­ent countries is to be expected." The "bacillus of boom or depression," he wrote, travels freely "from country to country."

Quinn Slobodian, Globalists, loc. 244