【明報專訊】Hong Kong has a pressing land and housing problem. Chief Executive Carrie Lam has said that the government will redouble its efforts in the coming year and continue to show ''the courage to open up land''. But she has not come up with anything new. The ''five ways to increase housing and land supply'' that she mentioned are directions that have been talked about for a long time, but she has failed to commit herself to specific measures, such as the reintroduction of the vacancy tax on first-hand buildings and a review of urban planning regulations to shorten the time for land development.