How do air pollution affect our economy?

The above answer is only one of the reasons of the efffect of air pollution to HK economy. Besides, air pollution will disencourage foreign investment e.g. setting headquarter in HK. It may also discourage local labour productivity as well.

albertkc2002 answers can be sum up to a main point.

All his ideas will lead to the a lower of living standard and a decrease of GDP/GNP.

In addition, a higher crime rate will also have the same result.

(1)Short life expectancy and high sick leaves rate would hurt the supply of human resources
(2)Big reservation for health care that the social burden will harm to economic development
(3) High cost on the environmental protection measures
(4)Premium pay for insurance and high medical expenditure—rather high cost
(5) Poor quality of work life and living that the home expatriate executives of foreign companies reluctant to work and bring their families there as resulting to less attractive to foreign (investments) companies to relocate their regional headquarters there
(6) Companies pursue good corporate image to maintain business with their global trading partners especially for the companies of EC that would win esteem from all stakeholders
(7) Besides the financial bottom lines of a company, the bottom line of environmental protection and social responsibility is raised high concern for sustainable development of a company as no companies can be standing alone just for their financial results without environmental concern.