1. Background and development of consumer vouchers: Introduce the background and history of consumer vouchers as a policy tool and its development in different countries and regions.
2. Types and distribution methods of consumer vouchers: Introduce different types of consumer vouchers (such as paper vouchers and electronic vouchers). ) and its distribution methods (such as direct government distribution, merchant distribution, etc.). ).
3. Impact of coupons: Analyze the impact of coupons on economy, society and environment. This can include the impact of coupons on promoting consumption, stimulating employment and reducing poverty, as well as the environmental and resource pressures.