In a global economy, there are many industrial systems. In fact, it's quite possible that a single town could have companies belonging to different industrial systems; e.g., a paper mill near a biotech research facility. Almost none of the productive systems share potential employees or potential markets; a recession for the biotech business could--and probably would--completely spare the paper mill. Moreover, the managers of the two businesses probably want opposite policies: the mill owners want low taxes and small government, while the biotech researchers want big spending on education and infrastructure.
Much confusion is caused by calling the industrial system the "economy." The industrial system is not the economy. The industrial system is an organic entity within a greater economy. Various policies may be beneficial for this or that industrial system, with an ambiguous effect (if any) on the economy.
(Tamara K. Hareven, *Family Time and Industrial Time* 1982, p.4)