Income-focused investors face a key choice between a fund with broader diversification at a lower cost or an ETF with a higher dividend yield.The Vanguard Total World Stock ETF (VT +0.84%) and the SPDR Portfolio MSCI Global Stock Market ETF (SPGM +0.80%) both deliver broad global equity exposure, but VT covers nearly four times the number of stocks, while SPGM pays a higher dividend yield.VT and SPGM aim to give investors a one-stop solution for global equity diversification, tracking thousands of stocks a ...