The European Union regime for fighting market manipulation and insider trading – commonly referred to as market abuse – was significantly reshuffled in the wake of the financial crisis of 2007/2008 and new legal instruments to fight market abuse were eventually adopted in 2014. In this monograph the authors identify the association between the financial crisis and market abuse, critically consider the legislative, policy and enforcement responses in the European Union, and contrast them with the approaches adopted by the United States of America and the United Kingdom respectively. The aftermath of the financial crisis, ongoing security concerns and increased legislation and policy responses to the fight against irregularities and market fa...