PPT Slide
Some Details of Convenience Stores
- Usually convenience stores start to sell new CDs from 3pm on the day before the officially announced sales date by manufacturers. They generally open stores for 24 hours.
- The original data are disguised for proprietary reasons and the day before the announced sales date is treated as a one half day duration for our computation.
- Period for data collection:10/14/97-7/09/99
- Number of data points: 56 days (eight weeks)