We argue that some sports test athletes’ capacities to endure specific types of suffering, and in such cases the suffering is constitutive of the sport: the sporting contest would not be a good sporting contest if that capacity were not tested. We then argue that it is morally acceptable for athletes to experience pleasure (Schadenfreude) in response to the constitutive suffering of competitors insofar as that pleasure is compatible with pity or sympathy for non-constitutive suffering. We use the case of (...) morally acceptable pleasure in the constitutive suffering of a competitor to clarify the sense of Schadenfreude. We defend a little recognised distinction of Aristotelian provenance between benign and malignant Schadenfreude, and, in contrast to the prevailing scholarly assessment, we show that Schadenfreude is not necessarily a passive emotion. (shrink)

Both fairness and efficiency are important considerations in market design and regulation, yet many regulators have neither defined nor measured these concepts. We develop an evidencebased policy framework in which these are both defined and measured using a series of empirical proxies. We then build a systems estimation model to examine the 2003–2011 explosive growth in algorithmic trading on the London Stock Exchange and NYSE Euronext Paris. Our results show that greater AT is associated with increased transactional efficiency and reduced (...) information leakage in top quintile stocks. For less liquid stocks, manipulation at the close declines. We also document the tradeoff between reduced spreads and increased manipulation or information leakage following the introduction of MiFID1. (shrink)

Both fairness and efficiency are important considerations in market design and regulation, yet many regulators have neither defined nor measured these concepts. We develop an evidencebased policy framework in which these are both defined and measured using a series of empirical proxies. We then build a systems estimation model to examine the 2003–2011 explosive growth in algorithmic trading on the London Stock Exchange and NYSE Euronext Paris. Our results show that greater AT is associated with increased transactional efficiency and reduced (...) information leakage in top quintile stocks. For less liquid stocks, manipulation at the close declines. We also document the tradeoff between reduced spreads and increased manipulation or information leakage following the introduction of MiFID1. (shrink)