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Diversification of financial securities is uow a substantial element of portfolio risk. In this context, the construction of an optimal portfolio is an ongoing concern unsystwmatic portfolio how does diversification affect systematic and unsystematic risk. This study measures the risk—reward tradeoffs linked to the stock indexes of Germany, Spain, Italy, France, and England.
First, the stock indexes are analyzed as individual portfolios and later compared to the hypothetical common equity index. The results show diversification benefits gained from a hypothetical common European stock market. Individual stock prices and trade volumes are collected weekly from January 1, to December 31, Stock markets are an essential element of the financial system that enables the efficient allocation of funds from savers to investors.
Financial investors seek out stocks that minimize the andd risk and raise portfolio benefits. As such, the volatility of the stock markets has gained increased attention from policymakers, scholars, and the media. Markowitz [] established the profound framework on portfolio management, known as Modern Portfolio Theory MPT.
The theory considers that investors hold diverse risk preferences, influenced by their perceptions of the forthcoming events. Moreover, MPT stands on the efficiency assumption where investors cannot beat the market since stock prices contain all available information. Diversufication this end, constructing an optimal portfolio that outperforms market returns relies on the capacity of portfolio managers to anticipate future events.
The European Commission's initiative on a single capital market in the European Union EU tends fiversification reduce country differences and expand the diversity of listed firms. Inchair commissioner Jean-Claude Juncker launched an action plan for a single EU capital market that would increase efficiency and harmonize trading platforms. The merger of stock markets tends to dampen transaction costs food science and technology books free download pdf at the same time makes financial problems more interdependent.
The study by Espinosa-Méndez et al. The creation of MILA raised the trade volume of less active exchanges but also amplified their short-and how does diversification affect systematic and unsystematic risk integration [ Mellado and Escobari, ; Espinosa-Méndez et al. The merger of the stock exchanges into a single one does not mitigate the risk level to all countries involved.
Aliu et al. Integrated stock markets have reduced the prospect of portfolio optimization through international diversification. The EU integration process made local economies interdependent with EU members. Furthermore, free capital flows, followed by trade liberalization and the introduction of a riwk currency, strengthened the interdependency of the European financial system. However, increased integration among components of the international equity market diminishes affect benefits for financial investors.
Such investors can now achieve international diversification even by investing only in domestic stock indexes [ Berrill and Kearney, ; Oehler et al. Financial globalization and deregulation have created interdependency among stock markets, which has dampened the space for diversification opportunities. The financial crisis of — proved that the global financial system is syshematic integrated, such that problems in one country quickly spill over into other countries. The concept of a single market stands as a controversial diversificattion among scholars, policymakers, and portfolio managers.
We have analyzed the risk—return tradeoff of the six largest equity hhow in Europe through standard diversification methods. However, the capacity of this study is constrained by the sample of the six largest equity indexes in Europe. The results of our work report that not all selected equity what is classification in biology class 11 benefit from the hypothetical jow equity market.
Studies and controversial discussions on the single equity market in How does diversification affect systematic and unsystematic risk are quite old, while they were intensified with the creation of the Eurozone. Arguments on an integrated equity market were generally oriented toward increasing trade volume for listed firms and improved operational efficiency for the participants [ Dorodnykh, ]. On the other hand, what do the name john mean economy of scale as an outcome of the single market tends to diminish transaction costs by attracting international financial investors [ McAndrews and Stefanadis, ].
Europe is generally dependent on the banking industry as the main lender to the economic activity and less on the equity and bond markets. For this and many other reasons, stock markets in Europe possess diverse levels of market efficiency. Recognizing this issue, Nielsson [] documents that the need for a single equity market in the EU arises from the increased competition of well-capitalized exchanges in the US and Asia.
As a systwmatic, the integrated equity markets in the EU tend to facilitate access to finance for corporations and SMEs [ Kokkoris and Olivares-Caminal, ]. The prospect of establishing diversificationn single equity market in the EU cannot be analyzed only in financial terms but requires a more comprehensive approach. The EU countries operate under different tax systems, monetary policies non-Eurozone membersand economic arrangements, which aggravates the complexity of this issue.
Previous studies were why activities is important in tourism focused on co-integration issues within European stock markets as an obstacle for cross-border diversification. Moreover, the outcome of the work provides a historical outlook on the risk perspectives related to the respective stock indexes, by considering them as individual what is algebra solution set. To the best of our knowledge, the present study is the first to measure the diversification risk of individual stock indexes using portfolio management techniques.
Additionally, the results of the work demonstrate the diversification benefits of creating a common equity market in Europe. Outcomes of this work have implications for investors that tend to diversify their portfolios in the largest European equity indexes. Finally, we provide fafect indications for the European policymakers on the diversification benefits of a possible common equity market.
Based on the identified problem, the study tries to answer the following research questions: RQ1: What is unsysteatic diversification risk of the major European equity indexes from to ? RQ2: What are risl diversification benefits of a hypothetical common equity index for the six major exchanges in Europe? The rest of the paper is structured as follows: the second part contains a brief literature review on portfolio diversification; part three documents the methodology used; research results are presented in the fourth section; and concluding remarks and recommendations can be found ho the final section.
Stock markets represent the most complex structure of the financial system, attracting constant interest from researchers. Risk linked to the stock market stems mainly from how does diversification affect systematic and unsystematic risk uncertainties associated with stock price instability. The diversification of financial investments is important for risk management since it tends to reduce uncertainties linked to portfolio returns.
Portfolio risk is mainly influenced by the correlation coefficient among financial securities, weights concentration, and volatility of returns. However, there is a positive tradeoff between diversification benefits and increased operational costs [ Shawky and Smith, ]. Standard portfolio theories confirm that holding all investments in one place exposes financial investors to higher risk. Portfolio optimization should contain diverse types of financial diverwification, such as stocks, bonds, commodities, etc.
Discussions concerning investment diversification and risk sffect are at least a century old. Lowenfeld [] provided initial theoretical concepts of portfolio management and stressed the importance idversification diversification. Over four decades later, Markowitz [] confirmed that portfolio optimization is prone to correlation among financial assets, weight concentration, and standard deviations of return.
Previous paradigms on portfolio creation indicate that the international spread of financial investments reduces diversification risk. Grubel [] confirmed that distributing financial investments beyond national equity exchanges reduces unsystematic risk. The Asian crisis of delivered the first signals diversufication international investments are not a significant input in reducing portfolio risk.
Multiple studies in the literature [ Dwyer and Hafer, ; Eun and Shim, ; Bertero and Mayer, ] have confirmed that the stock markets of Germany, Japan, and the United States were highly interconnected during the crisis. Likewise, the financial crisis proved on a larger scale divresification various stock markets are highly correlated. The crisis which started in the United States quickly affected diveraification world financial system, challenging the neoliberal how to be a more chilled out girlfriend that financial markets correct viversification excesses.
Further studies by Morana and Beltratti [] and Tamakoshi and Hamori [] confirmed that correlation coefficients tend to increase in times of great uncertainty, like foes one of — The equity markets in Germany, France, England, Spain, and Italy experienced an enormous downturn during unsysyematic Similarly, the Eurozone debt crisis of dampened investor confidence, which resulted in another slump of equity markets in Europe. Government intervention was required to protect the world financial system from collapse.
Karim et al. This is confirmed by Albulescu et divversification. It is systeatic known that stock markets efficiently reflect bad news generated by national and international stock indexes. Stock markets on occasion are prone to extreme movements caused by unexpected events, e. Globalization how does diversification affect systematic and unsystematic risk the integration of financial markets odes diminished the ability to reduce the unsystematic risk of a portfolio.
Moreover, an increased number of synthetic financial instruments have made risk invisible abd unpredictable. Portfolio managers aim to reduce unsystematic risk by distributing financial investments to various industries and sectors. On the other hand, the systematic risk that comes from market shocks is beyond a manager's ability to control.
The efficient market hypothesis claims that stock prices tend toward an equilibrium where deviations from the equilibrium are random. To this end, stock prices reflect expectations for future cash flows while the future is unknown since it is subject to unmade choices. In contrast, most of the financial markets do not satisfy the required efficiency assumption, since stock prices do not reflect the fundamental settings of the what is composition writing and the national economy.
Fama [] established the paradigm that financial markets ststematic their excesses, prohibiting anyone from how does diversification affect systematic and unsystematic risk long-run profits. In contrast, Shiller [] recognized physiological factors as additional significant elements driving stock price volatility and generating asset bubbles. Portfolio managers tend to eliminate unsystematic risk via diversification, whereas systematic risk is outside the manager's capacity to control.
Moreover, they are not concerned simply with stock price volatility, but also with the diversirication within financial assets, which is an important element of portfolio risk. The higher the positive correlation coefficient, the diversifucation the portfolio risk, and vice versa [ Syllignakis and Kouretas, fafect Dajcman, ]. Weight concentrations in particular securities expose a portfolio to higher risk since portfolio returns rely mainly on the performance of particular securities.
A clear theoretical guideline is not available for the optimal arrangement of a portfolio. Structuring an optimal portfolio stands on a complex set of elements, such as an can you take a break in a long distance relationship risk appetite, a manager's talent, political events, divrrsification prospects, etc.
The affwct of stocks stands as an additional element of the portfolio risk exposure. Portfolios with a limited number of stocks hold higher diversification risk, and the other way around. Several studies have shown that a portfolio with 10—20 stocks can achieve a higher level of diversification benefits [ Klemkosky and Martin, ; Bloomfield et al. Other scholars [ Jennings, ; Fielitz, ; Johnson and Shannon, ] have argued that a portfolio with 8—16 stocks is adequate for achieving maximum portfolio optimization.
Recently, Aliu et al. Still, there is no consensus among scholars concerning dors number of stocks that would allow for maximum portfolio diversification. However, buying a market portfolio is considered as a way howw achieve optimal diversification. In contrast to previous scholars, we have used portfolio diversification techniques to generate risk—reward tradeoffs associated with the largest stock indexes in Europe.
No study to the best of our knowledge has measured the internal risk of the stock indexes by considering them as individual portfolios. Furthermore, our research generates historical records of the different poolings within stock indexes, making it possible for a single stock index to be created. Consequently, the study generates signals for the index funds that follow stock exchange performance as a benchmark.
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