Elkhorn Capital Group, the exchange-traded fund issuer founded by former PowerShares’ veteran Ben Fulton, launched its second fund recently with an eye on high-dividend paying US companies. The newly launched Elkhorn FTSE RAFI US Equity Income ETF (ELKU) employs an investment strategy created by Research Affiliates, one of the pioneers of the so-called smart-beta investing. ELKU tracks the FTSE RAFI …