This study examines the influence of oil prices, business size, and return on equity investment, market liquidity, systematic risk and portfolio investment on the Indonesian stock market. The main dependent variables of this stock market study are the four dimensions of stock market efficiency,...

We study how financial market effciency affects a measure of diversification of output across industrial sectors borrowed from the portfolio allocation literature. Using data on sector-level value added for a wide cross section of countries and for various levels of disaggregation, we construct...

Recent work on complex adaptive systems for modeling financialmarkets is surveyed. Financia1 markets areviewed as evolutionary systems between different, competing tradingstrategies. Agents are boundedly rational inthe sense that they tend to follow strategies that have performedwell, according...