Correct. In the given graph, a shift from D1 to D0 indicates a decrease in the demand for the good. See 3-2: DemandFigure 3-1 
Definitions:
Customer Value
The perception of what a product or service is worth to a customer compared to the options available.
Fill Rate
A measure of the ability to deliver requested products to customers, typically expressed as a percentage of total orders that are fully satisfied.
CRM Data
Information collected and managed by a Customer Relationship Management system, detailing interactions and relationships with customers.
Loyalty-Card Program
A customer loyalty program that rewards customers for their repeated business with benefits like discounts or free merchandise.
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