Published by Mark Smith-HalvorsenThe yen gained broadly in a nervy trading Asian trading session this morning (April 19th) as traders reacted to developments in the civil lawsuit against Goldman Sachs.At the end of last week, the Securities and Exchange Commission charged the investment house with fraud over its restructuring of debt products during the US subprime mortgage crisis.However, speaking to Reuters, Joseph Capurso, a currency strategist at Commonwealth Bank, said the gains made in hedge currencies are likely to be sustained."What we are seeing is a reaction to the Goldman Sachs news, but I think this will be very short-lived with investors' focus likely to return to economic data in the next few days," he forecast.Elsewhere, official figures have shown this morning that consumer confidence in Japan rose to its highest level in two years in March, the third consecutive monthly rise recorded by the Cabinet Office.In addition to boosting investor confidence in the Japanese economy, these figures may also provide support for higher-yield currencies in the region.For more information on foreign exchange treasury services and risk management, visit our Corporate FX site