in another note,
"According to a 2003 position paper of the union Samahang Manggagawa ng Shoemart (SMS), SM employs 20,000 contract workers and only 4,000 regular employees. These contract workers (called “trainees” by SM management) are dismissed every three months and replaced by new workers to avoid being regularized and avoid paying benefits and allowances.
Maintaining a workforce composed mainly of contract workers also prevents unionization from gaining a strong foothold in SM, since contract workers are prohibited under the law from joining unions. This practice is not limited to SM but is prevalent in other retail establishments as well."
---source:
http://www.bulatlat.com/news/5-33/5-33-jobless.htm