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Using textual analysis and comparing cybersecurity-risk disclosures of firms that were hacked to others that were not, we propose a novel firm-level measure of cybersecurity risk for all US-listed firms. We then examine whether cybersecurity risk is priced in the cross-section of stock returns. Portfolios of firms with high exposure to cybersecurity risk outperform other firms, on average, by up to 8.3% per year. At the same time, high-exposure firms perform poorly in periods of high cybersecurity risk. Reassuringly, the measure is higher in information-technology industries, correlates with characteristics linked to firms hit by cyberattacks, and predicts future cyberattacks.

Information and Market Efficiency • Event Studies • Insider Trading --- Capital Budgeting • Fixed Investment and Inventory Studies • Capacity

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It is shown how the frequency of central bank intervention in financial markets can affect the incentives for economic agents to acquire information, which will be reflected in market prices and thus become available to policy makers. The optimal frequency of intervention, and therefore the optimal interest rate variability, will balance the desirability of attaining given operational targets against the benefits of encouraging informational efficiency. The ability of the central bank to send clear signals of its own intentions will also depend on market informational efficiency.

Banks and Banking --- Finance: General --- Monetary Policy --- Information and Market Efficiency --- Event Studies --- Banks --- Depository Institutions --- Micro Finance Institutions --- Mortgages --- General Financial Markets: General (includes Measurement and Data) --- Banking --- Finance --- Money markets --- Banks and banking --- Money market

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This paper surveys the debate on arms-length and relationship-based financial systems with a special focus on the Eastern Europe and Central Asia region. The paper argues that while the initial dominance of relationship-based systems in the region is consistent with the implications of the theoretical literature, the subsequent improvements in supporting institutions coupled with structural changes suggests a greater scope for arms-length elements going forward.

Access to Finance --- Banks & Banking Reform --- Debt Markets --- Emerging Markets --- Finance and Financial Sector Development --- Financial Economics --- Financial Intermediation --- General Financial Markets --- Information and Market Efficiency --- Macroeconomics and Economic Growth

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Since the Australian dollar was floated in December 1983, the Australian central bank (Reserve Bank of Australia) has actively intervened in the foreign exchange market. Using daily exchange rate and official intervention data from January 1984 to December 2001, this paper examines what effects, if any, foreign exchange operations by the Reserve Bank of Australia (RBA) have had on the level and volatility of the Australian dollar exchange rate. First, using an event study we evaluate the effectiveness of intervention by examining its direct effect on the level of the exchange rate. We find that over the period 1997-2001, the RBA has had some success in its intervention operations, by moderating the depreciating tendency of the Australian dollar. Second, we investigate the effects of RBA intervention policies on exchange rate volatility over the floating rate period. Our results indicate that intervention operations tend to be associated with an increase in exchange rate volatility, which suggests that official intervention may have added to market uncertainty. Overall, the effects of RBA intervention are quite modest on both the level and the volatility of the Australian dollar exchange rate.

Finance: General --- Foreign Exchange --- Money and Monetary Policy --- Information and Market Efficiency --- Event Studies --- International Financial Markets --- Monetary Systems --- Standards --- Regimes --- Government and the Monetary System --- Payment Systems --- Currency --- Foreign exchange --- Finance --- Monetary economics --- Exchange rates --- Currency markets --- Exchange rate adjustments --- Currencies --- Foreign exchange intervention --- Financial markets --- Money --- Foreign exchange market --- Australia

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The relationship of stock returns and trading volume is the focus of much recent interest. I examine an economic model of a rational trader who operates in a market with transactions costs and noise trading. The level of trading affects the rational trader’s marginal cost of transacting; as a result, trading volume is a source of risk. This engenders an equilibrium relationship between returns and volume. The model also provides a simple way to scrutinize this relationship empirically. Empirical evidence supports the implications of the model.

Econometrics --- Investments: General --- Investments: Stocks --- Macroeconomics --- Information and Market Efficiency --- Event Studies --- Macroeconomics: Consumption --- Saving --- Wealth --- Price Level --- Inflation --- Deflation --- Estimation --- Pension Funds --- Non-bank Financial Institutions --- Financial Instruments --- Institutional Investors --- Investment --- Capital --- Intangible Capital --- Capacity --- Econometrics & economic statistics --- Investment & securities --- Consumption --- Asset prices --- Estimation techniques --- Stocks --- Return on investment --- Economics --- Prices --- Econometric models --- Saving and investment