Recently，Rolf J. Langhammer, former deputy director of the Institute of Economics, Germany, said in an interview with this reporter，China will show development potential in the fields of green economy and silver -haired economy。

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Langhamers:Considering China's existing resources，The government believes that it can achieve "about 5%" growth，Perhaps the word "left and right" can be understood as a 4%-6%range than the past。If necessary，China can stimulate public investment and consumption。But due to global economic demand, it is still sluggish、Political fragility、The marginal productivity of capital and labor is declining，The risk of low efficiency is much higher than the previous years。I suggest to stimulate domestic consumption by increasing social expenditure。

　"China Social Sciences": What are your suggestions for China's green economy?

Langhamers:Ideally，The unified carbon market in China requires all regions and all departments (family、Industry、Transportation、Housing) Unified carbon pricing。The rising carbon price may prevent pollutants from investing in more expensive but higher quality production and consumption。To solve this problem，The government can use higher income brought by the unified carbon market to subsidize the higher emission reduction cost of poor families and small enterprises，to maintain their investment and consumption level。

　"China Social Sciences": How do you think of the high -quality development of the Chinese silver -haired economy?

Langhamers:The growth of high -quality service supply in the silver hair economy depends on four factors: life expectancy、The speed of health and aging processes、Familiarity of digital services、Income level and consumption tendency。Because Chinese elderly people have a high degree of adaptation to digital (this is different from many European countries)，And the health is still good，The first and second factor will promote China's high -quality service supply。The uncertainty of the third and fourth factor is greater。The average actual income level of the aging population may not be enough to support high -quality consumption，If you are more expensive,、Health and Housing Service。This will require the government to provide financial support in improving social allowances。where，The fourth factor is the decisive。In view of the uncertainty of economic development，The aging population may show a higher savings tendency instead of consumer tendency。