Disclaimer: I am not an investment advisor. Heck, i am not even working in the financial industry. Below are my interpretation and i am grateful if you will let me know if anything i say is wrong and i will correct it in a reasonable time. I am not an expert and don't wish to be assumed to be one. I make losses frequently.
In 2004, the Ministry of Finance undertook a public consultation to seek views about the Public-Private-Partnership model. This initiative took root based on the studies about the successes of the PPP model in countries including the United Kingdom, Ireland, Australia, Hong Kong and Canada.

And lo and behold, the poster girl to spearhead this PPP model was Ms Olivia Lum who was the "highlight of the Forum."

A list of FAQs about the PPP model was also crafted here.
In addition, a PPP handbook has been uploaded

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