Four years ago, at the time when the Chinese economy was hit by the financial crisis, consumer vouchers were widely discussed as a policy suggestion to stimulate domestic demand, and the practice in Hangzhou, Chengdu, and other places also received some effects. However, there are certain requirements for large-scale hairstyle vouchers. The impact is also very complicated, and the results obtained in some pilot cities such as Hangzhou and Chengdu are not universally representative. What do the above paragraphs mean? ['Hangzhou and degree pilot implementation of consumer vouchers to achieve results is only an accident.', 'Consumption vouchers have a significant effect on stimulating domestic demand.', 'China cannot yet implement consumer coupons on a large scale.', 'Promoting consumer vouchers in other cities cannot achieve the same results as Hangzhou and Chengdu.']