200 International Organization National exposure to the international economy Falling Rising Militarily relevant resources are Tightening of Relaxing of locally abundant economic economic constraints on constraints on the state's the state's security security Some militarily relevant resources Mixed Mixed are locally abundant,others are movement of movement of locally scarce constraints constraints Overall Overall movement of movement of constraints constraints determined by determined by the extent to the extent to which state can which state can substitute substitute locally scarce locally for locally abundant for abundant locally scarce resources resources Militarily relevant resources are Relaxing of Tightening of locally scarce economic economic constraints on constraints on the state's the state's security security FIGURE 2.Predicted changes in economic constraints on the state's security Russia-in the decades prior to World War I.During this period,technological revo- lutions in communications and transportation,combined with international political stability,significantly lowered the costs and risks associated with international ex- change and led to a dramatic and sustained expansion of the volume and range of goods,services,and capital being exchanged on world markets.Between 1870 and 1900,world trade almost doubled,and in the remaining years before World War I itRussia—in the decades prior to World War I. During this period, technologicalrevo￾lutions in communications and transportation, combined with international political stability, signiŽ cantly lowered the costs and risks associated with international ex￾change and led to a dramatic and sustained expansion of the volume and range of goods, services, and capital being exchanged on world markets. Between 1870 and 1900, world trade almost doubled, and in the remaining years before World War I it FIGURE 2. Predicted changes in economic constraints on the state’s security 200 International Organization