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Parvez Ahmed's
Scholarly Papers
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Parvez Ahmed University of North Florida - Coggin College of Business Sudhir Nanda T. Rowe Price Associates
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28 Nov 00
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28 Nov 00
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1,152 (3,894)
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Abstract:
Several empirical studies show a systematic relationship between stock characteristics (size, earning yield, dividend yield, etc.) and stock returns. The previous studies, that show stocks with high earnings yield produce superior returns use univariate measures (such as E/P or B/P) to classify stocks into value or growth stocks. This paper shows that the traditional method of classification ignores instances when value and growth investing strategies instead of being mutually exclusive can complement each other in selecting superior performing stocks. Growth in EPS provides a more meaningful way to capture growth than using a measure of low E/P ratio. A strategy focusing on investing in stocks that have the dual characteristics of a high E/P ratio and high growth in EPS outperforms a strategy of high E/P alone. The study also documents some evidence of persistence in performance for stocks having the dual characteristic of high growth in EPS and high E/P ratio.
Value and growth investing, style investing
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Parvez Ahmed University of North Florida - Coggin College of Business Partha NMI1 Gangopadhyay St. Cloud State University - G. R. Herberger College of Business Sudhir Nanda T. Rowe Price Associates
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06 Nov 01
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06 Dec 01
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444 (16,783)
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Over the last decade investing in financial markets of emerging countries has become increasingly popular. In this paper we examine the performance of equity and bond mutual funds that invest primarily in the emerging markets. Our results indicate that emerging market stock funds generally under perform their benchmarks, whereas bond funds perform just as well as their benchmarks. We also find that the performance and diversification benefits of emerging markets funds are conditional on U.S. monetary policy. Emerging market funds perform better during periods of restrictive monetary policy, i.e., when the Federal Reserve raises the discount rate. The results of this paper have implications for investors and pension plan sponsors.
Mutual fund performance, emerging markets, monetary policy, international diversification
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Parvez Ahmed University of North Florida - Coggin College of Business Sudhir Nanda T. Rowe Price Associates Oliver Schnusenberg University of North Florida - Department of Accounting and Finance
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05 Sep 05
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18 Jan 06
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165 (51,675)
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Abstract:
We investigate the relationship between a firm's degree of social responsibility and its performance. To accomplish this objective, we examine the stock market reaction to the announcement of Fortune magazine's list of 100 Best Companies to Work For over the 1998 to 2003 period. We find significant positive excess returns, which indicate the being included on the list is viewed positively by the stock market. To explain the positive abnormal performance, we regress the excess returns against firm-specific variables. Excess return has a positive relation to the job growth rate, but not to firm rank, on a pre-listing basis. However, additional analysis reveals that firms with a more favorable ranking are relatively small and have a higher job growth rate, low employee turnover, high betas, and extremely positive stock market performance prior to their inclusion on the list. In the year following the publication, sample firms with a favorable ranking have higher sales and gross profit margin than their lower-ranked counterparts. Overall, the results indicate that firms exhibiting a high degree of social responsibility toward their employees are positively rewarded by stock market participants, and that the rankings are somewhat related to pre- and post-survey financial performance.
Social responsibility, Fortune, firm reputation, employee turnover, best companies to work for
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Wealth Effect of Drug Withdrawals on Firms and Their Competitors
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Parvez Ahmed University of North Florida - Coggin College of Business John Gardella, M.D. Presbyterian Hospital, Matthews Sudhir Nanda T. Rowe Price Associates
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25 Oct 00
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14 May 09
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Parvez Ahmed University of North Florida - Coggin College of Business John Gardella, M.D. Presbyterian Hospital, Matthews Sudhir Nanda T. Rowe Price Associates
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05 Dec 02
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14 May 09
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In this paper, we examine the impact of a drug withdrawal on shareholders of firms and their direct competitors. We find shareholders suffer significant wealth losses when there are reports of adverse drug reactions and when the firm actually withdraws a drug from the market. Additionally, shareholder wealth losses are inversely related to the firm's market capitalization. Firms that withdraw drugs during advanced clinical investigations experience greater wealth loss than drugs withdrawn during post-marketing surveillance. Wealth losses are lower if many firms withdraw the same type of drug and if that drug has available substitutes.
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Parvez Ahmed University of North Florida - Coggin College of Business John Gardella, M.D. Presbyterian Hospital, Matthews Sudhir Nanda T. Rowe Price Associates
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25 Oct 00
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03 Sep 02
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Abstract:
This paper studies the impact of drug withdrawals on shareholder wealth of producers and competitors. Results show that the wealth loss is conditional on the information content of the news of a drug withdrawal. Firms withdrawing drugs during advanced clinical investigations suffer a larger wealth loss than withdrawals during post-marketing surveillance. The wealth loss is inversely related to the market capitalization and is smaller in case multiple firms withdraw the same type of drug. Moreover, reports of adverse drug reactions that sometimes precede the eventual withdrawal of a drug lead to significant loss in shareholder wealth. Finally, shareholders of the direct competitors gain only during the five-day post-event period.
Product recall, product withdrawal, competitors, event study
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Parvez Ahmed University of North Florida - Coggin College of Business Sudhir Nanda T. Rowe Price Associates
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13 Aug 05
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13 Aug 05
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Abstract:
We examine the performance of enhanced index and quantitative equity funds. Both types of funds use quantitative models in investment selection. Enhanced index funds set an explicit objective to outperform a benchmark index. Proponents of quantitative funds argue that their management style takes human emotions out of the investment decision-making process and leads to more objective stock selection. We find evidence of outperformance by quantitatively managed growth funds, especially those investing in small cap stocks.
Quantitative funds, enhanced index funds, mutual fund, performance evaluation
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Parvez Ahmed University of North Florida - Coggin College of Business Larry J. Lockwood Texas Christian University
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08 Aug 98
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12 Aug 98
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Abstract:
We show risk exposures and premiums associated with the Chen, Roll, and Ross (1986) risk factors change over time and depend on stock market and business cycle condition. Findings also indicate that factor risk premiums change sign between January and non-January, especially during bull markets. These findings serve as a caveat for portfolio managers who allocate assets to match desired exposures to key macroeconomic factors.
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