821 resultados para Idiosyncratic volatility
Resumo:
Tässä tutkielmassa tarkastellaan viljan hintariskin merkitystä suomalaisen viljanviljelyyn keskittyneen maatalousyrittäjän tulonmuodostukseen ja vertaillaan keinoja, joilla tältä riskiltä voidaan tarvittaessa suojautua. Tutkielman tuloksena voidaan todeta seuraavaa: 1) Tarkasteluajanjaksolla 2000-2014 viljan hinnan volatiliteetti Suomessa on pääosin pysytellyt maltillisella tasolla, muutamaa poikkeusvuotta lukuunottamatta. 2) Suomalaisesta näkökulmasta maailman hyödykepörssien futuureista vain muutama soveltuu hintasuojauksen tehokkaaseen toteuttamiseen. 3) Viljan hintariskin kriittisyys viljelijälle riippuu vahvasti tämän tulonmuodostuksesta, joten on tapauskohtaista voidaanko hintasuojaksen toteutus katsoa tarpeelliseksi. 4) Mahdollisuudet viljan hintasuojauksen toteuttamiseen ovat Suomessa varsin rajalliset verrattuna esimerkiksi edelläkävijään Yhdysvaltoihin.
Resumo:
This Master’s Thesis analyses the effectiveness of different hedging models on BRICS (Brazil, Russia, India, China, and South Africa) countries. Hedging performance is examined by comparing two different dynamic hedging models to conventional OLS regression based model. The dynamic hedging models being employed are Constant Conditional Correlation (CCC) GARCH(1,1) and Dynamic Conditional Correlation (DCC) GARCH(1,1) with Student’s t-distribution. In order to capture the period of both Great Moderation and the latest financial crisis, the sample period extends from 2003 to 2014. To determine whether dynamic models outperform the conventional one, the reduction of portfolio variance for in-sample data with contemporaneous hedge ratios is first determined and then the holding period of the portfolios is extended to one and two days. In addition, the accuracy of hedge ratio forecasts is examined on the basis of out-of-sample variance reduction. The results are mixed and suggest that dynamic hedging models may not provide enough benefits to justify harder estimation and daily portfolio adjustment. In this sense, the results are consistent with the existing literature.
Resumo:
Tässä kandidaatintyössä käsitellään raakaöljyn markkinahintaan vaikuttavia tekijöitä sekä hinnan kehittymistä ja tekijöitä merkittävien hinnanmuutosten taustalla vuodesta 1971 lähtien. Tarkastelun ajankohdan aluksi on valittu 1971 koska tuolloin Yhdysvallat saavuttivat öljyntuotantonsa huipun ja tulivat samalla riippuvaiseksi tuontiöljystä. Kyseinen muutoksen kautta Yhdysvallat eivät enää pystyneet vaikuttamaan öljyn hintaan, ja vaikutusvalta siirtyi öljynviejämaiden yhdistys Opecille. Työssä tehdään katsaus myös maailmna raakaöljyn tuotantoon, kuljetukseen, kulutukseen, jatkojalostukseen sekä raakaöljyn lopullisiin käyttökohteisiin. Lisäksi tarkastelun kohteena on tulevaisuuden näkymät raakaöljyn hinnalle. Raakaöljy kattaa suurimman osan maailman primäärienergian kulutuksesta ja on erittäin tärkeässä asemassa nykypäivän yhteiskunnille. Öljymarkkinoilla hintaan vaikuttaa kysynnän ja tarjonnan tasapaino kuten muillakin hyödykkeillä, mutta erityispiirteenä öljymarkkinoilla tarjonta on korostetun keskeisessä asemassa. Öljyn hintaan vaikuttaa myös monia muitakin tekijöitä, ja öljyn hinnan merkittävät muutokset ovat monesti seurausta useamman tekijän yhteisvaikutuksesta.
Resumo:
The second phase of Import Substituting Industrialization, commonly known as ISI2, involved the move in Latin America to "heavy" industrialization, from around 1950-80. This period of economic history has been reviled on both the Left and the Right as being one of either heightened dependency or one demonstrating the clear failure of state intervention in the economy. In this research note, a basic statistical analysis is used to back up other descriptive claims that the ISI2 period was rather one of mixed success, with macroeconomic volatility accompanying great progress in GDP and manufacturing growth. In a sense, the ISI2 period succeeded in industrializing the large economies of the period, and contrasts favorably with the record of the succeeding paradigm of neoliberalism. This research note seeks to raise questions about the way we look at the historical period of ISI2, and suggests that a more open-minded perspective could lead to a more effective and sustainable political economy paradigm for the region in the future.
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The purpose of this thesis is to focus on credit risk estimation. Different credit risk estimation methods and characteristics of credit risk are discussed. The study is twofold, including an interview of a credit risk specialist and a quantitative section. Quantitative section applies the KMV model to estimate credit risk of 12 sample companies from three different industries: automobile, banking and financial sector and technology. Timeframe of the estimation is one year. On the basis of the KMV model and the interview, implications for analysis of credit risk are discussed. The KMV model yields consistent results with the existing credit ratings. However, banking and financial sector requires calibration of the model due to high leverage of the industry. Credit risk is considerably driven by leverage, value and volatility of assets. Credit risk models produce useful information on credit worthiness of a business. Yet, quantitative models often require qualitative support in the decision-making situation.
Resumo:
The central hypothesis of this article is that in the context of globalization, monetary inconvertibility is a crucial problem of peripheral countries. It begins with a brief review of the debate from a historical point of view and then stresses the contemporary opposite's views on the fragility of financial system of emerging countries: the original sin and the debt intolerance hypothesis. Despite of supporting the first one, the article goes further and explores the domestic implication of inconvertibility. It criticizes the jurisdicional uncertainty proposition showing that an inherent flaw in the store of value of emerging market currencies, derived from original sin is the main reason for de facto inconvertibility and underdevelopment of domestic financial system of these countries.
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Real exchange rate and economic growth: a comparison between emerging and developed economies. This paper presents a discussion on the relationship between economic growth and real exchange rate. The article presents the results generated by a dynamic panel that tested the relationship of economic growth with the level of the exchange rate, exchange rate volatility and the choice of exchange rate regime from 26 countries, 13 emerging and 13 developed. The results suggest that the level of the exchange rate and volatility are relevant for growth. Finally, the paper stresses that there are important differences when comparing developed and emerging economies.
Resumo:
In the last two decades an entirely new set of rules governing the foreign exchange transactions was established in Brazil, substituting for the framework inherited from the 1930s. Foreign exchange controls were dismantled and a floating exchange rate regime replaced different forms of peg. In this paper we argue that although successful by comparison to previous experiences, the current arrangement has important flaws that should be addressed. We discuss how it first led to high volatility and extremely high interest rates, which, when overcome, gave way to a long lasting appreciation of the real exchange rate with adverse consequences to industry.
Resumo:
Textbook theory ignores capital flows: trade determines exchange rates and specialisation. Approaches taking the effects of capital movements adequately into account are needed, and a new theory of economic policy including measures to protect the real economy from external volatility. Equilibrating textbook mechanisms cannot work unless trade-caused surpluses and deficits set exchange rates. To allow orthodox trade theory to work one must hinder capital flows from destroying its very basis, which the IMF and wrong regulatory decisions have done, penalising production and trade. A new, real economy based theory is proposed, a Neoclassical agenda of controlling capital flows and speculation.
Resumo:
The objective of the study is to extend the existing hedging literature of the commodity price risks by investigating what kind of hedging strategies can be used in companies using bitumen as raw material in their production. Five different alternative swap hedging strategies in bitumen markets are empirically tested. Strategies tested are full hedge strategy, simple, conservative, and aggressive term structure strategies, and implied volatility strategy. The effectiveness of the alternative strategies is measured by excess returns compared to no hedge strategy. In addition, the downside risk of each strategy is measured with target absolute semi-deviation. Results indicate that any of the tested strategies does not outperform the no hedge strategy in terms of excess returns in all maturities. The best-performing aggressive term structure strategy succeeds to create positive excess returns only in short maturities. However, risk seems to increase hand-in-hand with the excess returns so that the best-performing strategies get the highest risk metrics as well. This implicates that the company willing to gain from favorable price movements must be ready to bear a greater risk. Thus, no superior hedging strategy over the others is found.
Resumo:
The performance of active and passive fund management has been extensively studied especially in the US. This thesis is focused on the performance of active and passive fund management in the Finnish and European stock markets during a five-year time span from 3/2011 to 3/2016. The aim of this study is to find out which strategy will result in better returns for the small-scale investor. The thesis questions also which strategy leads to a better profit-risk rate and how well the fund managers perform in creating added value. The data of the study consists of 44 active Finnish funds and two passive exchange traded funds available for Finnish investors. Indexes of both Finnish and European markets and a risk-free rate are used to support the analysis. The data for the thesis is collected from the DataStream database. Performance indicators that are used in the study are: return, volatility, Sharpe ratio and Jensen’s alpha. Based on the results of this study it can be concluded that in the Finnish stock market the passive strategy yielded a little better profits than the average of active funds. In the European stock market, the profits for the passive fund were significantly better than the average of active funds. Considering the profit-risk rate, neither strategy out- performed. The results of this thesis are in line with the previous studies, that encourage to favor the passive strategy.
Resumo:
Tutkielman tavoitteena on selvittää esiintyykö Suomen osakemarkkinoilla alhaisen volatiliteetin anomaliaa. Tutkielman tavoitteeseen vastataan työn empiirisessä osassa analysoimalla Suomen osakemarkkinoilla listattujen osakkeiden tuottoaikasarjoja. Tutkielmassa tarkastellaan myös finanssikriisin vaikutusta anomalian ilmenemiseen. Tutkimus sijoittuu aikavälille tammikuusta 2001 tammikuuhun 2015. Tutkielmassa muodostetaan portfolioita osakkeiden historiallisen volatiliteetin mukaan. Näiden portfolioiden menestymistä suhteessa markkinoihin arvioidaan absoluuttisten tuottojen, Sharpen luvun sekä Jensenin alfan avulla. Markkinaindekseinä käytetään OMXH CAP -indeksiä sekä tutkimusaineiston pohjalta muodostettua markkinaportfoliota. Kaikkein parhaimman absoluuttisen tuoton on saanut vuodesta 2001 vuoteen 2015 sijoittamalla keskiverron volatiliteetin osakkeisiin. Parhaan riskikorjatun tuoton on kuitenkin saavuttanut sijoittamalla alhaisen volatiliteetin osakkeisiin. Tutkielmassa löydetään todisteita alhaisen volatiliteetin anomalian esiintymisestä Suomen osakemarkkinoilla koko tutkimusaineisto huomioon ottaen. Tutkielman ehkä mielenkiintoisin löydös on kuitenkin huomio alhaisen volatiliteetin anomalian häviämisestä Suomen osakemarkkinoilta finanssikriisin jälkeen. Ennen finanssikriisiä esiintynyt erittäin vahva alhaisen volatiliteetin osakkeiden ylisuoriutuminen hävisi täysin finanssikriisin jälkeen. Toisin sanoen riskin ja tuoton suhde on kääntynyt päälaelleen finanssikriisin jälkeen, eikä alhaisen volatiliteetin anomaliaa voida enää sanoa esiintyvän.
Resumo:
In the last few decades, banking has strongly internationalized and become more complex. Hence, bank supervision and regulation has taken global perspective, too. The most important international regulation are the Basel frameworks by the Basel committee on banking supervision. This study examines the effects of bank supervision and regulation, especially the Basel II, on bank risk and risk-taking. In order to separate and recognize the efficiency of these effects, the co-effects of many supervisory and regulatory tools together with other relevant factors must be taken into account. The focus of the study is on the effects of asymmetric information and banking procyclicality on the efficiency of the Basel II. This study tries to find an answer, if the Basel II, implemented in 2008, has decreased bank risk in banks of European Union member states. This study examines empirically, if the volatility on bank stock returns have changed after the implementation of the Basel II. Panel data consists of 62 bank stock returns, bank-specific variables, economic variables and variables concerning regulatory environment between 2003 and 2011. Fixed effects regression is used for panel data analysis. Results indicate that volatility on bank stock returns has increased after 2008 and the implementation of the Basel II. Result is statistically very significant and robustness has been verified in different model specifications. The result of this study contradicts with the goal of the Basel II about banking system stability. Banking procyclicality and wrong incentives for regulatory arbitrage under asymmetric information explained in theoretical part may explain this result. On the other hand, simultaneously with the implementation of the Basel II, the global financial crisis emerged and caused severe losses in banks and increased stock volatility. However, it is clear that supervision and regulation was unable to prevent the global financial crisis. After the financial crisis, supervision and regulation have been reformed globally. The main problems of the Basel II, examined in the theoretical part, have been recognized in order to prevent problems of procyclicality and wrong incentives in the future.
Resumo:
The aggressive mushroom competitor, Trichoderma harzianum biotype Th4, produces volatile antifungal secondary metabolites both in culture and during the disease cycle in compost. Th4 cultures produced one such compound only when cultured in the presence of Agaricus bisporus mycelium or liquid medium made from compost colonised with A. bisporus. This compound has TLC and UVabsorption and characteristics indicating that it belongs to a class of pyrone antibiotics characterised from other T. harzianum biotypes. UV absorption spectra indicated this compound was not 6-pentyl-2H-pyran-one (6PAP), the volatile antifungal metabolite widely described in Th1. Furthermore, this compound was not produced by Th1 under any culture conditions. Mycelial growth of A. bisporus, Botrytis cinerea and Sclerotium cepivorum was inhibited in the presence of this compound through volatility , diffusion and direct application. This indicates that Th4 produces novel, volatile, antifungal metabolites in the presence of A. bisporus that are likely involved in green mould disease of mushroom crops.
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Each person with Autism Spectrum Disorder (ASD) comes with unique characteristics (idiosyncratic) that give clues to the world they know (Connolly, 2008). It is through their body that they (a) know the world they are experiencing, (b) make meaning, and (c) express certain behaviours. I used Laban’s Movement Analysis (LMA) to practice an attuned and appreciative approach to describing and understanding the body movement in one severe manifestation of autism in an adolescent male. LMA observes human movement across many disciplines and can be applied in many contexts providing a body honoring discourse for description (Connolly, 2008). The framework examines movement in body, space, quality, and relation. Each theme provides a detailed description of the individual’s movement, thus, giving us a richer understanding of patterns and possible triggers to self-injurious behaviours (SIB). During the summer of August 2013, I participated in Brock University’s annual Autism Camp and worked with a 15 year old male named “Aaron” who manifests with low functioning autism. The purpose of my research project was to code and analyze a series of photos taken to help gain insight into movement patterns associated with stressed embodiment and self-injury in “Aaron”. As I understood more about these embodied expressions, I uncovered valuable information on how to read patterns and discover what triggers these events, thus providing strategies on how to help people do more refined observations and make meaning of the behaviour. Laban’s movement analysis provided a sensitized discourse appropriate to the embodied expressions depicted in the photos.