Whose suggestion did Emperor Wen of Han adopt to support the people by imperial decree?

In BC 169 and BC 1 1 year, Emperor Wendi adopted Chao Cuo's suggestion and issued a letter to recruit people to immigrate to Xia Sai. Chao Cuo was an important official in the period of Emperor Wendi and Emperor Jing of Han Dynasty from 200 years ago to 154 years ago. During the period of Emperor Wen of Han Dynasty, Chao Cuo went to the frontier to persuade farmers to be sparse and support the people to be sparse. He proposed that immigrants should be blocked to resist foreign invasion and was adopted. When Emperor Jing of Han Dynasty arrived, Chao Cuo advocated the forced separation of vassal states, which caused the chaos of the Seven Kingdoms. Seven vassal states, led by the prince of Wu and Liu Bi, rebelled against Chao Cuo in the name of Jun Qing. Han Jing was forced to behead Chao Cuo.

Chao Cuo's introduction.

Chao Cuo, a statesman and writer of the Western Han Dynasty, is a representative figure of the Western Han Dynasty. From 200 BC to 154 BC, Chao Cuo, Han nationality. He was born in Yingchuan, Henan Province, and was a politician and writer in the Western Han Dynasty. When Emperor Wendi was Emperor Wendi, he served as an anecdote too many times. Later, he served as Prince Sheren, Doctor, and Prince's Order. After Emperor Jingdi ascended the throne, he became a physician. Chao Cuo formulated the policy of attaching importance to agriculture and restraining business, and advocated rewarding grain, increasing agricultural production and revitalizing the economy.

On the issue of resisting Xiongnu's invasion of the frontier, this paper puts forward the strategic idea of immigrating to the real frontier, and suggests that herders enrich the frontier fortress and actively prepare for Xiongnu's attack and plunder. Politically, it is suggested to cut down governors and deprive them of political privileges to consolidate centralization, which harms the interests of governors. Representative works include "Talking about Military Affairs", "Guarding the Border and Persuading Agriculture", "Talking about Expensive Millet" and "Benign Countermeasures".