巨乘馬
The Great Chengma Method
桓公問管子曰：“請問乘馬。”管子對曰：“國無儲在令。”
Duke Huan asked Guan Zhong about the Chengma system. Guan Zhong replied: 'The state's reserves depend on its commands.'
Notes
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The Chengma (乘馬, 'multiplying horses') chapters (68-70) present a sophisticated system for calculating state revenue based on agricultural output, labor availability, and seasonal timing. The term derives from the method of 'multiplying' land productivity calculations.