Abstract The purpose of the research is to offer a comparative analysis of a libertarian and gradual approach to introducing a market interest rate. The topic is time-relevant since the economies of the emerging markets today face difficult challenges posed by economic, financial and health-care crises, impending price stability, future growth and money market equilibrium. A digital currency is a special issue today due to the outbreak of covid-19, which has made many central banks think about contactless means of payment. The author revealed policy tools to circulate a hypothetical digital currency for the BRICS, including a shared interest rate and the quantity of digital money in circulation needed for the penta-lateral use. The theoretical significance is that the research tries to lay the foundation for a model to launch a virtual regional money market for the countries of the BRICS as well as their partners in wider parts of Europe and Asia. In practical terms, the article recommends a number of tools for monetary policy to deal with the coronavirus crisis of 2020.

中文翻译：

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一组国家共同发行数字货币的利率模型：以金砖国家为特色

摘要 本研究的目的是对引入市场利率的自由主义和渐进方法进行比较分析。该主题与时间相关，因为当今新兴市场的经济体面临着经济、金融和医疗危机、即将到来的价格稳定、未来增长和货币市场平衡带来的严峻挑战。由于covid-19的爆发，数字货币在今天是一个特殊问题，这使许多中央银行开始考虑非接触式支付方式。作者揭示了为金砖国家流通假设的数字货币的政策工具，包括共同利率和五边使用所需的流通数字货币数量。其理论意义在于，该研究试图为金砖国家及其在欧洲和亚洲更广泛地区的合作伙伴推出虚拟区域货币市场的模式奠定基础。实际上，文章推荐了一些货币政策工具来应对 2020 年的冠状病毒危机。