Robert McKinley, Senior Analyst/Editor Robert McKinley, with 33 years experience covering payment cards and payment systems, is Senior Analyst/Editor for CardFlash and other payments-related publications. He is the retired founder and chief executive of RAM Research, CardWeb and CardTrak. McKinley served as an expert witness in 100+ litigations including two multi-$billion trials, testified before the U.S. Congress, chaired multiple payments conferences, hired as consultant by Fortune 100 companies and several overseas financial institutions. Full Bio:

US Q1/15 Marketshare

It is likely American Express will continue to lose U.S. marketshare to Visa (VS) and MasterCard (MC) in the first quarter, with MC doing the most damage, according to forecaster RAM Research. The AmEx erosion will continue throughout 2015 and will be impacted in the second quarter of 2016 when AmEx ends the Costco card, which accounts for 10% of AmEx Cards-in-Force (CIF).