I have a labelled design, with 3 alts. and an 'optout' option.
The attribute 'risk' is being fixed in all alts.. Yet this prior has a poitive value for all three alt. (the riskier the climate change the more utility one has to participate a coslty effort) Yet, for the 'optout' I would still like to keep the "Designs within design" option for 'risk' but to assign a negative value either the prior 'b3' or to it's level 'risk' , since for non-participation one incur negative utility the higher the risk is.
I tried to assign a minus, (highlighted in the last row.) But this is not a valid specification. Is there to design the experiment I'm looking for?
Thanks, Anat.
- Code: Select all
Design
;alts = device, garden, money, optout
;rows = 32
;block=8
;eff = (mnl,d)
;model:
U(device) =b1[n,0.21,0.0627]+ b2[0.4]*participation[2,5,9] + b3[0.241]* risk[1,2.5,4]+b4[-0.154]*working[2,3,4]/
U(garden) =c1[n,0.18,0.0643]+ b2 * participation+ b3* [[b]risk[/b]]+b4*working[2,3,4]/
U(money) = d1[n,0.19,0.0783]+ b2 * participation+ b3* [[b]risk[/b]]+b5[-0.7]*cost[2,3,4]/
U(optout)= b3* risk[-([b]risk[/b])]$