Abstract
PurposeThe purpose of this paper is to evaluate how markets in financial instruments directive (MiFID) and regulation national market system (Reg NMS) affect the competition for order flow among trading venues in, respectively, Europe and the USA.Design/methodology/approachThe paper examines the differences between MiFID and Reg NMS and provides, based on market microstructure principles, insights as to their likely impact on European and the US securities markets.FindingsAlthough MiFID and Reg NMS share the common objective of enhancing competition in securities markets, they adopt different provisions with respect to three issues that strongly influence the competition for order flow among trading venues. Specifically, some of the provisions set forth by the US regulation with respect to the best execution duty, the consolidation of market data and the disclosure of execution quality information appear to be more effective, compared to the European Union ones, in strengthening competition for order flow among trading venues.Research limitations/implicationsRegulatory factors can only partly explain the current structure of the European and US securities markets. Technology and heterogeneity in traders' demand are other important factors that concur in shaping the European and US markets.Practical implicationsThe degree of competition for order flow among trading venues depends on how regulations define the best execution duty, the availability of updated and consolidated pre‐trade (i.e. quotations) and post‐trade (i.e. transactions) information and the efficiency of post‐trading infrastructures.Originality/valueThe paper addresses issues not yet investigated and provides valuable insights for financial intermediaries, incumbent and prospective exchanges as to the competition in the securities industry, and to regulators as to the likely impact of the new regulations.
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