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		| Seonghoon  Jeon | 
	
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		| ''Ramsey pricing in one-way and two-way interconnection between telephone networks'' | 
	
		| ( 2002, Vol. 12 No.3 ) | 
	
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		| I derive Ramsey optimal prices in one-way access of long-distance operators and enhanced service providers to local loops.  As long-distance services and enhanced services become substitutes due to the advance of Internet telephony, the Ramsey principle requires higher access charges assessed on both services.   I also derive Ramsey prices in two-way interconnection between fixed-link and mobile phone networks, which turn out to be formally equivalent to those for the one-way access above.  This result suggests that the price of fixed-to-mobile calls should be higher than the price of mobile-to-fixed calls when the substitutability of calls to double subscribers is more prominent than the substitutability of calls of double subscribers, and vice versa. | 
	
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		| Keywords: | 
	
		| JEL: L5 - Regulation and Industrial Policy: General L9 - Industry Studies: Transportation and Utilities: General
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		| | Manuscript Received : Feb 19 2002 |  | Manuscript Accepted : Feb 20 2002 | 
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