 
                
                                                    
                        \de Haan\, L., \de Vries\, C. and Zhou, C. (2013). The number of active bidders in internet auctions Journal of Economic Theory, 148(4):1726--1736.                    
                            
         
                 
                 
                 
                 
                 
                 
                 
                 
                 
                 
                 
                Francesco Lippi (2013). The demand of liquid assets with uncertain lumpy expenditures Journal of Monetary Economics.
 
                 
                