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| From | Stephanie Stefanski <stephanie.stefanski@gmail.com> |
| To | statalist@hsphsun2.harvard.edu |
| Subject | st: Doubleb command for Double Bounded Dichotomous Choice data from CV survey |
| Date | Sat, 6 Oct 2012 14:57:09 -0400 |
I am attempting to analyze a data set of sample size N = 1000 with 5 starting bid values as part of a contingent valuation study. I am using the Double Bounded Dichotomous method and have successfully installed and tested the doubleb command with the sample dataset (see: http://econpapers.repec.org/software/bocbocode/s457168.htm ). However, when I attempt to use the program with my dataset, Stata returns the following error: doubleb bid1 bid2 response1 response2 initial: log likelihood = -<inf> (could not be evaluated) could not find feasible values r(491); My dataset contains no missing values. There are 5 different bid1 values and 10 different bid2 values. Response1 and Response2 are just dummy variables. Any advice or feedback would be greatly appreciated. Best, Stephanie Stefanski MESc Candidate, 2014 Yale School of Forestry & Environmental Studies Cell 845-616-4671 stephanie.stefanski@yale.edu * * For searches and help try: * http://www.stata.com/help.cgi?search * http://www.stata.com/support/faqs/resources/statalist-faq/ * http://www.ats.ucla.edu/stat/stata/