But foreign holding companies using Zurich as a base can be exempt from tax on non-Swiss earnings and firms can also apply for "mixed company tax privilege" to agree lower rates.
The social optimum condition for mixed economy can be realized through setting up appropriate policies on tax and national debt.
而社会性的最优增长状态，可以通过设定适当的税收和国债政策，在混合经济中得以实现。
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This paper discusses clear definition on concurrent business and mixed sales and how to collect taxes according to tax laws and puts forward some reasonable tax planning for business decisions.