There are probably many Hong Kong parents intrigued with the title of Bryan Caplan's book, Selfish Reasons to Have More Kids.
In a city of money-savvy people, soaring property prices, high school fees and high expectations, and where the cost of bringing up one child runs into millions, most would say it is common sense to have fewer, not more.
So how does Caplan, a United States economics professor, set about trying to persuade couples and parents to think again before they decide 'not to leap' or 'leap again'.
According to Caplan, a father of three, we should forget about parenting's cost, worries and stress, because the long-term pros far outweigh the short-term cons.
The real problem, he says, is a tendency to make the job more difficult than it is by worrying too much, trying to do too much and by being too controlling. The better way is to worry and nag less and enjoy yourself more.
Whether you see sense in Caplan's method of parenting depends very much on which side you take in the 'nurture versus nature' debate. Caplan examines studies on adopted children and twins, and comes down firmly on the side of nature being the main force that shapes our children. He argues: with nature at the steering wheel, why can't parents opt for an easier ride?