并列题名：Study on the effectiveness of security analysts' earnings forecasting Study on the effectiveness of security analysts' earnings forecasting 并列题名：Study on the eddectiveness of gold hedging against usd exchange rate risk 并列题名：Study on the information content of analyst rating and earnings forecast 并列题名：Study on the effect of cross listings in China Case study on the ineffectiveness of internal control over financial reporting 并列题名：Study on the effectiveness of state ownership in pricate sector enterprises 并列题名：Research on the effectiveness of monetary policy in China 并列题名：Study on the effectiveness of the implementation of risk-oriented auditing standards