Theory of constitutional control of legislation by the principle of the protection of legitimate expectations

• Project/Area Number: 26780012
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Multi-year Fund
• Research Field: Public law
• Research Institution: Yamaguchi University
• Principal Investigator: Taira Sayuri 山口大学, 経済学部, 講師 (00631508)
• Project Period (FY): 2014-04-01 – 2017-03-31
• Project Status: Completed (Fiscal Year 2016)
• Budget Amount: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000); Fiscal Year 2016: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000); Fiscal Year 2015: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000); Fiscal Year 2014: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
• Keywords: 信頼保護 / 財産権 / 現存保障 / 憲法 / ドイツ / 公法学

Outline of Final Research Achievements

This research aimed to analyze the principle of the protection of legitimate expectations from a constitutional point of view and to construct the theory of control of legislation by this principle.
On the one hand the legislature must change the legal institution according to social circumstances, and on the other hand it must consider the guarantee of vested rights (esp. property right). I clarified through the study of German law that the principle of the protection of legitimate expectations can give the framework by which the legislature balances both duties.

Research Products

• [Book] 財産権の憲法的保障 (2017)
  • Author(s): 平良小百合
  • Publisher: 尚学社