How Air Quality Affect Health Industry Stock Returns: New Evidence From the Quantile-on-Quantile Regression

This paper discusses the asymmetric effect of air quality (AQ) on stock returns (SR) in China's health industry through the quantile-on-quantile (QQ) regression method. Compared to prior literature, our study provides the following contributions. Government intervention, especially industrial policy, is considered a fresh and essential component of analyzing frameworks in addition to investors' physiology and psychology. Next, because of the heterogeneous responses from different industries to AQ, industrial heterogeneity is thus considered in this paper. In addition, the QQ method examines the effect of specific quantiles between variables and does not consider structural break and temporal lag effects. We obtain the following empirical results. First, the coefficients between AQ and SR in the health service and health technology industries change from positive to negative as AQ deteriorates. Second, AQ always positively influences the health business industry, but the values of the coefficients are larger in good air. In addition, different from other industries, the coefficients in the health equipment industry are negative, but the values of the coefficients change with AQ. The conclusions provide important references for investors and other market participants to avoid biased decisions due to poor AQ and pay attention to government industrial policies.

Public–Private Partnership Infrastructure Investment and Sustainable Economic Development: An Empirical Study Based on Efficiency Evaluation and Spatial Spillover in China

Public–private partnership (PPP), an innovative mode of infrastructure investment, has been widely applied in China and has become an essential policy tool with which to promote sustainable economic development. In order to comprehensively evaluate the economic consequences, using 31 provinces in China from 2003 to 2018 as samples, first, stochastic frontier analysis was performed to measure the input–output efficiency of infrastructure investment to evaluate the economic sustainability and efficiency of PPP compared to single government-led investment mode. Next, the overall economic growth effect of PPP was verified. Further, from the perspective of sustainable development of regional economies, the double-fixed effect spatial Durbin model was adopted to empirically test the spatial spillover effect of PPP and clarify its industrial heterogeneity. The results show the following. (1) The average input–output efficiency of infrastructure is 0.449, revealing a distribution law of decreasing from east to west and remarkable regional variation. However, a good trend of improvement emerged, reflecting the economic sustainability of infrastructure investment, and PPP has played a positive role in promoting it. (2) PPP has significant and positive economic growth and spatial spillover effects, which can promote regional economic integration, embodying its economic sustainability function. (3) The economic impact of PPP has significant industrial heterogeneity. Transportation PPP can bring greater economic benefits, confirming the vital position of transportation infrastructure in the sustainable development of regional economies. Energy and water PPPs have positive externalities. All of this provides powerful and reliable proof of the realization of sustainable economic development under the regional virtuous circle driven by infrastructure investment through PPP.

Profit Shifting and Industrial Heterogeneity

Base erosion and profit shifting undermines tax revenues collection and raises public discontent in times when the tax burden has increased significantly for households in most developed economies. In addition, new forms of profit shifting related to intangible investment have emerged rapidly along the traditional use of transfer pricing and debt shifting by multinational companies. In this article, using worldwide company level data for the period 2004–2013, we demonstrate that the sectoral differences in profit shifting are a serious concern from a welfare and policy perspectives. Sectors performing more profit shifting lower their average cost of capital and are thus able to attract more investment to the detriment of sectors less able to dodge taxes. We develop a multilevel model and provide indirect evidence of the welfare costs caused by profit shifting by estimating the cross-sectoral variance of semi-elasticity of declared profit. We also demonstrate that having a larger share of intangible assets is not per se related to more profit shifting and that it may point instead to cross-sectoral differences. Finally, we detect almost no financial shifting and find that the largest part of profit shifting is done by means of transfer pricing.

Industrial Heterogeneity and Spatial Hierarchy in Multiregional Freight-Generation Models

Covariance analysis is used to explore two questions encountered in modelling freight generation for a multizonal system. At the level of the British standard region, where employment data by industry are readily available, experiments are conducted on a variety of aggregations of freight-flow data to see whether explanatory-variable data collection and manipulation can be minimized. This would be the case if common relationships between freight generated and employment data hold for broad groupings such as ‘heavy’ industry, chemicals, and engineering. At the zonal level an examination is made of the spatial distribution of residuals from the regression of total road freight generated on resident population. It is shown that for different zone types different relationships hold, and it is demonstrated that the centre–periphery explanation of the spatial distribution of residuals can be seen to be valid if ‘centre’ and ‘periphery’ are defined in a functional sense.