Stock exchange

About: Stock exchange is a research topic. Over the lifetime, 39566 publications have been published within this topic receiving 612044 citations.

Operational risk and reputation in the financial industry

Abstract: By examining stock market reactions to the announcement of operational losses by financial companies, this paper attempts to disentangle operational losses from reputational damage. Our analysis deals with 154 events coming from the FIRST database of OpVantage. Events occurred between 1990 and 2004 in companies belonging to the financial sector and that are listed on the major European and US Stock Exchanges. Results show significant, negative abnormal returns at the announcement date of the loss, along with an increase in the volumes of trade. In cases of internal fraud, the loss in market value is greater that the operational loss amount announced, which is interpreted as a sign of reputational damage. Negative impact is proportionally greater when the loss amount represents a larger share in the company's net profit. © 2009 Elsevier B.V. All rights reserved.

Integrating a Piecewise Linear Representation Method and a Neural Network Model for Stock Trading Points Prediction

Abstract: Recently, the piecewise linear representation (PLR) method has been applied to the stock market for pattern matching. As such, similar patterns can be retrieved from historical data and future prices of the stock can be predicted according to the patterns retrieved. In this paper, a different approach is taken by applying PLR to decompose historical data into different segments. As a result, temporary turning points (trough or peak) of the historical stock data can be detected and inputted to the backpropagation neural network (BPN) for supervised training of the model. After this, a new set of test data can trigger the model when a buy or sell point is detected by BPN. An intelligent PLR (IPLR) model is further developed by integrating the genetic algorithm with the PLR to iteratively improve the threshold value of the PLR. Thus, it further increases the profitability of the model. The proposed system is tested on three different types of stocks, i.e., uptrend, steady, and downtrend. The experimental results show that the IPLR approach can make significant amounts of profit on stocks with different variations. In conclusion, the proposed system is very effective and encouraging in that it predicts the future trading points of a specific stock.

Dark Markets: Asset Pricing and Information Transmission in Over-The-Counter Markets

Abstract: Over-the-counter (OTC) markets for derivatives, collateralized debt obligations, and repurchase agreements played a significant role in the global financial crisis. Rather than being traded through a centralized institution such as a stock exchange, OTC trades are negotiated privately between market participants who may be unaware of prices that are currently available elsewhere in the market. In these relatively opaque markets, investors can be in the dark about the most attractive available terms and who might be offering them. This opaqueness exacerbated the financial crisis, as regulators and market participants were unable to quickly assess the risks and pricing of these instruments. Dark Markets offers a concise introduction to OTC markets by explaining key conceptual issues and modeling techniques, and by providing readers with a foundation for more advanced subjects in this field. Darrell Duffie covers the basic methods for modeling search and random matching in economies with many agents. He gives an overview of asset pricing in OTC markets with symmetric and asymmetric information, showing how information percolates through these markets as investors encounter each other over time. This book also features appendixes containing methodologies supporting the more theory-oriented of the chapters, making this the most self-contained introduction to OTC markets available.

Markets as Cultures: An Ethnographic Approach

Abstract: The approach to the markets as cultures supposes at least three fields of studies: constitutive rules and roles; local rationality; dynamics of authorities and changes The paper deals with each of the fields The methodological issues of the study the markets as cultures are discussed after that The author supports his statement by giving examples of his own ethnographic studies of the stock exchange, bond market and futures markets on the Wall-street

Board diversity and firm performance: The indonesian evidence

Abstract: This paper examines the associations between diversity of board members and financial performance of the firms listed on the Indonesia Stock Exchange (IDX). Three demographic characteristics of board members—gender, nationality, and age—are used as the proxies for diversity. Using a sample of 169 listed firms, this study finds that both accounting and market performance have significant negative associations with gender diversity. Nationality diversity is found to have no influence on firm performance. In contrast, the proportion of young members is positively related to market performance, providing evidence that young people in the boardrooms are associated with improved financial performance.