He also published a paper on economics quite a while back (http://www.jstor.org/discover/10.2307/1882634 http://www.jstor.org/discover/10.2307/1882634) on exter

He also published a paper on economics quite a while back (http://www.jstor.org/discover/10.2307/1882634 http://www.jstor.org/discover/10.2307/1882634) on externalities. Not surprising, given the proactive Singapore government.