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发帖数: 800 | 1 ☆─────────────────────────────────────☆
Ronna (戎儿) 于 (Wed Apr 21 18:08:39 1999) 提到:
Now we would like to compare two approaches: (you should have these two
listed
in question I)
Tel-marketing (make direct phone calls to potential customers)
Direct Mail (send mails to potential customers)
Suppose the cost will be $1.00 per call, $0.50 per mail.
Suppose the contact rate will be 50% for phone calls (assume that
each call cost $1.00 no matter the customer is contacted or not),
and 100% for dire |
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