Holiday economy refers to a systematic economic model in which people use holiday shopping and consumption to drive supply, market and economic development. Holiday economy belongs to the category of consumer economy. The main feature of holiday economy is consumption, the cultural feature of holiday economy is leisure and tourism, and the spatial feature of holiday economy is mobility and aggregation, including people flow, logistics and capital flow.

Public economics is a science in economics, which specializes in the economic behavior of the government, the economic relationship between the government and the private sector and the special regularity of the government's economic activities.

The two are not in the same category, but we can put forward the guiding role of the government from the mismatch between the demand of holiday economic development and the public services provided by the government. "Holiday economy" cannot be simply understood as "festival economy", let alone "tourism economy". It includes tourism, leisure and entertainment, involving commodity consumption, tourism service consumption and cultural consumption. The policy of increasing public holidays and public investment is the sustainable driving force for the prosperity of holiday economy. The public investment policy mainly holds public projects in the form of government expenditure, such as building some non-profit or low-profit basic industries and infrastructure, which can continuously play the role of expanding investment demand and improving supply, and continuously create good supporting facilities and external environment for the development of holiday economy. Increasing public investment is a pumping policy. When the economy is depressed, it can automatically restore the vitality of the economy by paying a certain amount of financial funds. Countries that increase public investment policies can stimulate the prosperity of holiday economy by starting consumption and investment in both directions. Through the construction of infrastructure projects, we can not only absorb labor and create employment opportunities, but also increase residents' income, stimulate consumer demand and provide a material basis for the development of holiday economy. At the same time, it can quickly increase the scale of investment, directly expand the demand for social investment, stimulate economic growth, improve the weak and lagging infrastructure, and provide good supporting facilities and services for the development of holiday economy. By strengthening the cooperation between public investment policy and monetary and financial policy tools, we will provide credit support and guide the development direction of holiday economy. While promoting tourism, wedding and shopping consumption, banks pay attention to supporting the development of industries closely related to "holiday economy" such as municipal construction, transportation and communication, which will provide financial support for the further prosperity of "holiday economy", provide a realistic basis for the coordinated use of fiscal policy and monetary policy, and help realize the diffusion effect of public investment policy.