|  | 
	
		| First Author:
 
 | 
	
		|  | 
	
		| Anita Alves Pena | 
	
		| Colorado State University | 
	
		| anita.pena@colostate.edu | 
	
		|  | 
	
		| 1771 Campus Delivery, Department of Economics, Colorado State University | 
	
		| Fort Collins, 80523-1771, USA | 
	
		|  | 
	
		| 970-491-0821(Phone) | 
	
		| 970-491-0821(Fax) | 
	
		| http://lamar.colostate.edu/~aalves | 
	
	
		| Third Author: 
 
 | 
	
		| Mimi  Houston | 
	
		| Colorado State University | 
	
		| mmhouston88@gmail.com | 
	
		|  | 
	
		|  | 
	
		| , USA | 
	
		|  | 
	
		|  | 
	
		|  | 
	
		|  | 
	
		|  |