Finance at the speed of light: Is faster trading always better?
Marius Zoican20 September 2014
Technological advances in equity markets entered the spotlight following the Flash Crash of May 2010. This column analyses the advantages and disadvantages of algorithmic and high-frequency trading. Ever-faster exchanges do not always improve liquidity. Following a speed upgrade in the Nordic equity markets, effective spreads posted by high-frequency traders increased by 32%.
Few activities embraced the computer age so actively as trading. Loud and hectic pits have been progressively replaced by silent computer server rooms. Transactions are no less dynamic for it, however. A London-based trader can buy stocks in Frankfurt within just 2.21 milliseconds.1 Light needs 2.12 milliseconds to travel the same distance. Welcome to the age of algorithmic and high-frequency trading!
Many drugs sold in poor countries are counterfeit or substandard, endangering patients’ health and fostering drug resistance. Since drug quality is difficult to observe, pharmacies in weakly regulated markets may have little incentive to improve quality. However, larger markets allow firms to reorganise production and invest in technologies that reduce the marginal cost of quality. This column discusses how the entry of a new pharmacy chain in India led incumbents to both cut prices and raise drug quality.
Millions of people die each year from infectious diseases like malaria, TB, HIV, and diarrhoea, many of which have drug therapies. We need effective medicine to confront the alarming burden of infectious disease in the developing world. However, many of the drugs for sale in developing countries are of poor quality. Counterfeiters sell ineffective products that imitate the appearance of established brands, while small manufacturers make and distribute substandard versions of common generics.
All firms need capital. Much research addresses the choice between issuing various types of securities – for example, between issuing debt and equity. However, another method of financing has received relatively little attention – selling non-core assets, such as property, divisions, or financial investments. This article explains the conditions under which an asset sale is the preferred means of raising capital, and highlights how a manager should go about deciding between selling assets and issuing securities.
Political economists study how distortions in political access can lead to policies that lead to market failures. The authors of CEPR DP8533 examine the reverse link, mapping out how market failures could create political cleavages which can then amplify the market failure by voting for bad policies.