Principles & Strategies
Make it easy (or the alternative hard)
Make the desired behavior more convenient and accessible to do (e.g., remove barriers, provide substitutes)
Make the undesired behavior more difficult to do (e.g., create friction points, barriers)
Give rewards or penalties
Incentivize or reinforce desired behavior
Penalize or fine for doing the undesired behavior
Material incentives can crowd out other internal motivations for doing a behavior, such as in the case of volunteering. Rewarding good behavior can also build expectations that these rewards will be ongoing and may need to increase over time for the same effect. Some people might see fines as the price to do the behavior.