Testing for non-response and sample selection bias in contingent valuation : Analysis of a combination phone/mail survey
| Year of publication: |
1993
|
|---|---|
| Authors: | Whitehead, John C. ; Groothuis, Peter A. ; Blomquist, Glenn C. |
| Published in: |
Economics Letters. - Elsevier, ISSN 0165-1765. - Vol. 41.1993, 2, p. 215-220
|
| Publisher: |
Elsevier |