This graph shows the direct tradeoff between the military and manufacturing productivity, as the military increases the economy slows. This cold war analysis uses Ruth Sivard's bar chart data and plots them on a graph to produce this stunningly exactly result, R= -99.7% accurate when weighted by continents. Updates every five years were produced, with the last one 1960-1993, and the results change only slightly. The national R= 98% when Canada is dropped. But Canada traded 30% of its economy with the US, so the accurate way is to combined these two into North America, which falls exactly on the tradeoff line. Likewise Europe is exactly on the tradeoff line. Britain was outside the EEC until 1974, so they underperform the graph while France receives the lion's share of EEC subsidies so they overperform.