The graph shown depicts a tax being imposed, causing demand to shift from D1 to D2. 
What change does this tax cause?
Definitions:
Conventions
This refers to the established practices, rules, or norms in a specific area or among a particular group, often used to ensure consistency and effectiveness.
Customs
Traditional practices and norms that are established and followed by a society, community, or group.
Cultural System
An integrated network of culturally related elements, such as beliefs, practices, norms, and values that influence and guide the behavior of individuals within a particular society.
Ecology
The branch of biology that studies the relationships between organisms and their environment.
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