
    
                                     
                            A HEVEA Example
                            ***************
                            Philip A. Viton
                            ===============
                                    
  
              Abstract:  We demonstrate some easy LaTeX-to-HTML
              conversion using Hevea 
  

1  Introduction
*=*=*=*=*=*=*=*
  
  Let an individual i have a choice set of size K, and let i's choices
be discrete. The conditional indirect utility that i achieves if kin K
is selected is  
                        v                       
                           =X  beta +epsilon    
                         ik  ik              ik 
   where X_ik is an n-vector of attributes of choice k as perceived by
indvidiual i, beta  is an n-element weighting vector, and epsilon _ik is
a random variable. The individual chooses that alternative m whose
conditional indirect utility is greatest (ie, maximizes utility). If the
epsilon _ik are independent, identically distributed
Type-1-Extreme-Value variates, then we have the alternative-m choice
probability P_im given by  
                   P        [v  >v                   
                       = Pr          ,for all k!= m] 
                    im        im  ik,                
                         (            )              
                         (   X  beta  )              
                         (  e im      )              
                         (            )              
                         ( -----------)              
                       = (            )              
                         ( --         )              
                         ( \  X  beta )              
                         ( / e ik     )              
                         ( --         )              
                         ( k          )              
   the logit model.
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              This document was translated from LaTeX by HeVeA
              (http://para.inria.fr/~maranget/hevea/index.html). 
