Keywords: quasars: general, galaxies: active, infrared: galaxies, surveys

1. INTRODUCTION

2. SAMPLE SELECTION  
2.1. Mid-infrared selection  
2.4. KX selection of red QSOs  
2.5. Spectroscopic Classification  

3. RESULTS  
3.1. Reddening investigation  
3.2. Removal of host galaxy emission  
3.3. Reddening in the W2M sample  
3.4. Red QSOs in the SDSS sample  

4. LUMINOSITY-RESTRICTED SAMPLE

5. RESULTS  
5.1. Radio Properties  
5.2. A note on incompleteness  

6. DISCUSSION  
6.1. Radio emission in red quasars  
6.2. The fraction of red QSOs  
6.3. Mergers, radio emission, and red quasars as an evolutionary phase  

7. CONCLUSIONS