EFFICIENT POLICY IN A PREDATORY ECONOMY: TO HIM WHO HATH SHALL BE GIVEN?*
研究了受掠夺影响的贸易如何产生市场内外部性，并分析了有效税收、基础设施和执法政策如何内部化这些外部性，对核心和外围市场的不同影响。
Trade subject to predation generates externalities within and between markets. Efficient tax, infrastructure, and enforcement policies internalize the net externality—more trade implies fewer predators but drawn to trade at rising cost. The balance is positive (negative) as enforcement is weak (strong). Dual economies pair weak Periphery and strong Core enforcement markets. Efficient taxation and infrastructure promote the Core at the expense of the Periphery. Efficient enforcement promotes both. Tolerance (intolerance) of smuggling is efficient when Core enforcement is weak (strong). Tolerance of informal market Mafias that provide enforcement and infrastructure is efficient when Core enforcement is strong.