Here are links to reports and articles relating to regulatory impacts relevant to understanding the business of information and market data.
Accenture: MiFID2 From Impact to Implementation
Bank of England: Fair & Effective Markets Review Report 2015 June
Deloitte: 2017 Financial Markets Regulatory Outlook
DUCO: MiFID2 A Practical Guide
EDM Council: Data Benchmarking Report
ESMA: MiFID2 Guidelines on Transactions Reporting
European Banking Authority: Regulatory Technical Standards on Prudent Valuations
EY: Understanding Fundamental Review of the Trading Book
FSB: Second Review of the Implementation of IOSCO Principles for Financial Benchmarks
IOSCO: Principles for Financial Benchmarks Final Report