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• 03/19/2018
  • No.267 "Proposing Vertical Separation of 5G Mobile Operation to Cope with the Natural Monopoly from Using Small Cells" added.
• 11/26/2012
  • No.243 "Potential demand for m-government services in Japan" added.
• 6/28/2010
  • New presentation materials added to No. 224 "Toward Designing Economic Mechanism for Spectrum Reallocation --- A System with Compulsory Revelation of Supply Prices". (ITS Tokyo, 2010)
  • No. 225 "Regulatory Framework for Broadband Investment and Competition (Comments)" added. (ITS, Tokyo, 2010)
• 5/24/2010
  • No. 223 "On the U.S. National Broadband Plan of 2010 --- Spectrum Policy (Comments)" added. (ICPC, Tokyo, 2010)
• 5/17/2010
  • No. 224 "Toward Designing Economic Mechanism for Spectrum Reallocation --- A System with Compulsory Revelation of Supply Prices" added. (ITS Tokyo, 2010)
  11/09/2009
  • New table on illustration of theorems for variational methods added to No.21 "Comparative Dynamics (Sensetive Analysis) in Optimal Control Theory".
• 11/19/2008
  • New presentation material added to No.214 "Designing a Mechanism for Spectrum Trade toward Efficient Reallocation".
• 07/03/2008
  • No.214 "Designing a Mechanism for Spectrum Trade toward Efficient Reallocation" added.

What used to be new

• 2006
• 2005
• 2004
• 2003
• 2002 (N/A)
• 2001
• 2000
• 1999
• 1998

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