1. INTRODUCTION

2. DATA, SAMPLE SELECTIONS, AND METHODS  
2.1. K-correction and Sample Selection  
2.2. The Spectroscopic Selection Function and Weights 

3. RESULTS

4. DISCUSSION  
4.1. Mild Evolution or Fast Evolution?  
4.2. The Accumulated Merger Fraction since z ∼ 1.2  
4.3. The Roles of Dry Mergers in the Formation of Massive Galaxies  
4.4. The Role of Mixed and Wet Mergers vs. Dry Mergers

5. CONCLUSION