Research Article
Drift and the Risk-Free Rate
Table 1
values for testing
. None are significant at 0.05.
| Symbol | Dates | UMPU | LRT | Effect size |
| AAPL | 1-5-2001 to 12-6-2001 | 0.416 | 0.413 | | APD | 1-5-2001 to 12-6-2001 | 0.520 | 0.517 | | C | 1-1-1983 to 1-1-2000 | 0.059 | 0.059 | | CVS | 8-30-2001 to 11-30-2001 | 0.420 | 0.397 | | DAL | 11-03-1994 to 02-02-1995 | 0.914 | 0.913 | | F | 11-03-1994 to 02-02-1995 | 0.258 | 0.226 | | IBM | 3-29-1984 to 07-31-1984 | 0.618 | 0.611 | | K | 11-12-1999 to 02-10-2000 | 0.996 | 0.995 | | LMT | 1-5-2001 to 12-6-2001 | 0.237 | 0.277 | | PG | 11-12-1999 to 02-10-2000 | 0.457 | 0.445 | |
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