The performance of emerging markets exchanged-traded funds (ETFs) have been marred by the trade wars between the U.S and China, such as the Vanguard FTSE Emerging Markets ETF (NYSEArca: VWO)–down 7.67% YTD, iShares Core MSCI Emerging Markets ETF (NYSEArca: IEMG)–down 7.3% YTD and...