Geng Shouchang and Grain Regulation Mechanisms in the Western Han Dynasty: The Changping Granary and Canal Transport Reforms

Brief Introduction

Geng Shouchang was an outstanding economic official in the mid-Western Han period, who served as Vice Minister of the Ministry of Agriculture. The "Changping Granary" system and canal transport reform proposals he put forward during the Yuan Shi era not only resolved the grain supply-demand imbalance in the Guanzhong region at that time, but also became a significant milestone in macro-regulation in ancient Chinese economic history. These measures profoundly influenced the food security systems of subsequent dynasties.

Core Knowledge Points

1. Innovation of the Changping Granary System
Traditional granaries were mostly "relief during famine," belonging to passive aid. The Changping granary proposed by Geng Shouchang was an active market regulation tool. Its core logic was "high-priced procurement in good harvest years, low-priced sales in famine years." By intervening in the market, the state used the price lever to stabilize grain price fluctuations, protecting the interests of farmers (avoiding grain devaluation in good years) and ensuring food security for urban residents in famine years.

2. Practical Orientation of Canal Transport Reforms
Geng Shouchang keenly pointed out the high risk and cost of traditional river transport. He advocated using maritime transport to replace some river transport, particularly implementing the "Yueshun Grain" policy in the Guanzhong region, which involved purchasing grain from frontier commanderies and storing it in frontier areas to reduce losses and corruption risks from long-distance overland transport. This line of thinking, based on logistics efficiency optimization, reflected early actuarial economics thinking.

3. Position of the Vice Minister of the Ministry of Agriculture
As the vice chief of the Ministry of Agriculture, Geng Shouchang was directly responsible for the management of state granaries and canal transport. His policies were not isolated administrative orders, but were embedded in the centralized fiscal system, ensuring policy enforcement.

Connection with "Book of Han" Content

In "The Book of Han: Food and Commodities," the records of Geng Shouchang reflect a shift in grain policy during the reign of Emperor Yuan. The text details his memorial: "Currently, the frontier commanderies have sufficient grain and low prices. We can gradually stabilize grain distribution and wait for times of high grain prices. Let the border officials dare to sell, balancing low and high prices without great fluctuation." This clearly outlines his strategy of building a buffer zone for frontier grain.

"The Book of Han" also records the court's evaluation and implementation results. Although Emperor Yuan initially adopted his suggestions, as Confucian scholars like Liu Xiang emphasized the Confucian concept of "inversion of fundamentals," the Changping granary system was gradually marginalized later, seen as an expedient measure that competed with the people for profit. This historical turn is reflected in "The Book of Han" as "abolition of Changping Granaries," indicating the suppression of practical economic policies by Confucian classics in the mid-to-late Western Han.

By studying "The Book of Han," we can see that Geng Shouchang's policy was not just a technical logistics improvement, but a political debate about the boundaries of state intervention in the market. His ideas transcended the era, and the concept of Changping Granaries continued into the "Yi Granaries" of the Tang Dynasty and similar systems of the Song, Yuan, Ming, and Qing Dynasties, proving the enduring vitality of his theory in maintaining social stability.