 
    
        
    
    
    
    
        
            Date Published:
            2005
        
                    
            Citations:
            Ebbes, Peter, Michel Wedel, Ulf Bockenholt, Ton Steerneman. 2005. Solving and testing for regressor-error (in)dependence when no instrumental variables are available: with new evidence for the effect of education on income. Quantitative Marketing and Economics. 365-392.