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The fight between two nations on each other’s exportable on the basis of tariff is known as tariff war. Although an economic policy, very ­often ­motivated by nationalism and politics, a nation imposes tariff on the ­exports of another nation which, in retaliation, again imposes tariff on the exports of its trading partner. The prime cause of such war is certainly to enhance employment opportunities in the home nation. But politics and nationalism provoke the opposite nation to follow the same policy. Effects of such tariff war, whether beneficial or harmful, are yet to be seen. In this context, we have adopted a general equilibrium model to illustrate the probable effect of the above-stated trade war in a structure consisting both H–O nugget and export sector dualism. The effect of imposition of tariff on multinational corporation (MNC) that has its own origin nation and production activities in other nation as well where it faces the war of tariff is considered. But it gets relief in the form of tax reduction in its origin nation. Under such a scenario, the study has shown the effect of tariff in the presence of full employment in the economy as well as in the presence of unemployment. It is seen that the MNC will continue its production procedure in both nations and enjoy profit, under some conditions. Further, in the presence of unemployment it is seen that if rate of tax on the MNC rises, unemployment may fall and welfare can increase under certain conditions.

The USA–China trade confrontation has become a major concern for all the nations involved in international trade. The retaliatory trade policies taken by both of these major trading nations have generated widespread impact among the trading nations especially on the developing and emerging nations. In this chapter, the macro-theoretic model is developed to show how a trade war can potentially arise in the wake of economic downturn led by some demand contracting force in one of the countries having trade ties and in turn can cause the recession to leap into global turmoil. This may prompt the countries to be more protective and averse to international exchange, thereby paving way to more intense trade frictions among the nations and stoking international macroeconomic propagation. Thus, the present introspection hints at tariff war among the nations engaged in restricted trade with each other being a plausible consequence of macroeconomic fault having cross-country repercussion implication and that in turn becomes more pronounced in the present tariff war leading to more fierce trade frictions among the countries.

Customers today expect businesses to cater to their individual needs by tailoring the products they purchase to their own preferences. The term “Industry 5.0” refers to a new wave of manufacturing that aims to meet each customer's unique demands. Even while Industry 4.0 allowed for mass customization, that wasn't good enough before, customers today demand individualized products at scale, and Industry 5.0 is driving the transition from mass customization to mass personalization to meet these demands. It caters to the individual needs of each consumer by meeting their demands. More specialized components for use in medicine are made possible by the widespread customization made possible by Industry 5.0. These individualized parts are included into the medical care of the patient to meet their specific needs and preferences. In the current medical revolution, an enabling technology of Industry 5.0 can produce medical implants, artificial organs, bodily fluids, and transplants with pinpoint accuracy. With the advent of AI-enabled sensors, we now live in a world where data can be swiftly analyzed. Machines may be programmed to make complex choices on the fly. In the medical field, these innovations allow for exact measurement and monitoring of human body variables according to the individual's needs. They aid in monitoring the body's response to training for peak performance. It allows for the digital dissemination of accurate healthcare data networks. In order to collect and exchange relevant patient data, every equipment is online.