Second, we reconstruct the price history of five food grains (rice, millet, sorghum, wheat, and soybeans) and determine the degree of price integration in the prefectural market.

• 其次，我们构建了五种谷物（稻米、黍、高粱、小麦、大豆）的价格史，确定了该行政地域市场的价格整合度。