Supersymmetry

Abstract

I review phenomenologically interesting aspects of supersymmetry. First I point out that the discovery of the positron can be regarded as a historic analogue to the would-be discovery of supersymmetry. Second I review the recent topics on the unification of the gauge coupling constants, $m_b$--$m_τ$ relation, proton decay, and baryogenesis. I also briefly discuss the recent proposals to solve the problem of flavor changing neutral currents. Finally I argue that the measurements of supersymmetry parameters may probe the physics at the Planck scale.