6. Recommendations and conclusions
This study provides recommendations and conclusions on air pollution-related health cost accounting research in China, by studying the differences among different health cost accounting models and their related economic parameters, the China-specific and globally-applicable indicators, data resource, and conducting a bibliometric review on the past 30-year research trend. Finally, we conclude this paper by recommending areas of improvements and highlighting the general research directions for health cost accounting.
6.1. Select the best model for health cost accounting
More attentions should be paid to the choice of appropriate model for health cost accounting. The static model is likely to underestimate the total health costs, mainly by ignoring the long-term effects of crosssectoral interactions (Matus et al., 2012; Nam et al., 2010; Reilly et al., 2013); the dynamic model based on CGE model can take into account of the interaction effects, and create a soft-link between the CGE model and models on air quality and health impacts to better represent the true costs of health due to air pollution in China. However, though the dynamic model has been developed, further effort is needed in future to improve the model structure to address the robustness of the parameters, and to take into account any country specific variables that may contribute to the final health costs of individuals. At the moment, the efficiency of the dynamic model in China may be affected if there is not enough empirical data available to facilitate parameter calibration. However, with increasing attention paid to the health effects of air pollution in China by the government and the public, the scale and quality of available health and air pollution data to be fed into the CGE model should be improved subsequently.