Every economic policy issued by the government will change the income expectation of some interest groups. For self-interest, these interest groups will always try to use various behavior choices to offset the losses caused by the policy. If the government really does this, The change of the original policies not only invalidated the policies issued by the government, but also made the government's ability to regulate and control the economy steadily decline due to the loss of credibility. This text is mostly fanciful:. ['Obstacles encountered by the government in formulating economic policies.', 'The government must continue to implement its policies.', 'Factors that must be considered when formulating economic policy.', "Government's ability to regulate and control the macroeconomy."]