wtpcikr computes mean and/or median willingness to pay (WTP), confidence intervals (CI) based on the Krinsky and Robb (1986) method, achieved significance levels (ASL) for testing the null hypothesis that WTP<=0, and relative efficiency measures (Loomis and Ekstrand, 1998). The command supports both linear and exponential contingent valuation models estimated with or without covariates using the Stata commands probit, logit, and biprobit. It can also be used for user-written maximum likelihood programs as long as the formulas for WTP measures apply. The user bears the responsibility as to whether WTP formulas apply. Users are referred to Haab and McConnell (2002), pp. 52-57 and p. 104 for WTP models and mean/median WTP formulas, and pp. 110-112 for the Krinsky and Robb procedure.
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Publisher Info
Software component provided by Boston College Department of Economics in its series Statistical Software Components with number
S456965.
Size: Programming language: Stata Requires: Stata version 9.2 Date of creation: 10 Oct 2008 Date of revision: Handle: RePEc:boc:bocode:s456965
Note: This module may be installed from within Stata by typing "ssc install wtpcikr". Windows users should not attempt to download these files with a web browser. Contact details of provider: Postal: Boston College, 140 Commonwealth Avenue, Chestnut Hill MA 02467 USA Phone: 617-552-3670 Fax: +1-617-552-2308 Email: Web page: http://fmwww.bc.edu/EC/ More information through EDIRC