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1 – 10 of over 2000
Article
Publication date: 1 June 2005

Erkka Näsäkkälä and Jussi Keppo

We consider the partial hedging of stochastic electricity load pattern with static forward strategies. We assume that the company under consideration maximizes the risk adjusted…

Abstract

We consider the partial hedging of stochastic electricity load pattern with static forward strategies. We assume that the company under consideration maximizes the risk adjusted expected value of its electricity cash flows. First, we calculate an optimal hedge ratio and after that we use this hedge ratio to solve the optimal hedging time. Our results indicate, for instance that agents with high load volatility hedge later than agents that have low load volatility. Moreover, negative correlation between forwards and electricity load pattern postpones the hedging timing.

Details

Managerial Finance, vol. 31 no. 6
Type: Research Article
ISSN: 0307-4358

Keywords

Article
Publication date: 7 August 2007

Raimond Maurer and Shohreh Valiani

This study seeks to examine the effectiveness of controlling the currency risk for international diversified mixed‐asset portfolios via two different hedge instruments, currency…

7627

Abstract

Purpose

This study seeks to examine the effectiveness of controlling the currency risk for international diversified mixed‐asset portfolios via two different hedge instruments, currency forwards and currency options. So far, currency forward has been the most common hedge tool, which will be compared here with currency options to control the foreign currency exposure risk. In this regard, several hedging strategies are evaluated and compared with one another.

Design/methodology/approach

Owing to the highly skewed return distributions of options, the application of the traditional mean‐variance framework for portfolio optimization is doubtful. To account for this problem, a mean lower partial moment model is employed. An in‐the‐sample as well as an out‐of‐the sample context is used. With in‐sample analyses, a block bootstrap test has been used to statistically test the existence of any significant performance improvement. Following that, to investigate the consistency of the results, the out‐of‐sample evaluation has been checked. In addition, currency trends are also taken into account to test the time‐trend dependence of currency movements and, therefore, the relative potential gains of risk‐controlling strategies.

Findings

Results show that European put‐in‐the‐money options have the potential to substitute the optimally forward‐hedged portfolios. Considering the composition of the portfolio in using in‐the‐money options and forwards shows that using any of these hedge tools brings a much more diversified selection of stock and bond markets than no hedging strategy. The optimal option weights imply that a put‐in‐the‐money option strategy is more active than at‐the‐money or out‐of‐the‐money put options, which implies the dependency of put strategies on the level of strike price. A very interesting point is that, just by dedicating a very small part of the investment in options, the same amount of currency risk exposure can be hedged as when one uses the optimal forward hedging. In the out‐of‐sample study, the optimally forward‐hedged strategy generally presents a much better performance than any types of put policies.

Practical implications

The research shows the risk and return implications of different currency hedging strategies. The finding could be of interest for asset managers of internationally diversified portfolios.

Originality/value

Considering the findings in the out‐of‐sample perspective, the optimally forward‐hedged minimum risk portfolio dominates all other strategies, while, in the depreciation of the local currency, this, together with the forward‐hedged tangency portfolio selection, would characterize the dominant portfolio strategies.

Details

Managerial Finance, vol. 33 no. 9
Type: Research Article
ISSN: 0307-4358

Keywords

Article
Publication date: 24 August 2020

Fabio Filipozzi and Kersti Harkmann

This paper aims to investigate the efficiency of different hedging strategies for an investor holding a portfolio of foreign currency bonds.

Abstract

Purpose

This paper aims to investigate the efficiency of different hedging strategies for an investor holding a portfolio of foreign currency bonds.

Design/methodology/approach

The simplest strategies of no hedge and fully hedged are compared with the more sophisticated strategies of the ordinary least squares (OLS) approach and the optimal hedge ratios found by the dynamic conditional correlation-generalised autoregressive conditional heteroskedasticity approach.

Findings

The sophisticated hedging strategies are found to be superior to the simple strategies because they lower the portfolio risk in domestic currency terms and improve the Sharpe ratios for multi-asset portfolios. The analyses also show that both the OLS and dynamic hedging strategies imply holding a limited carry position by being long in high-yielding currencies but short in low-yielding currencies.

Originality/value

The performance of multi-currency portfolios is examined using more realistic assumptions than in the previous literature, including a weekly frequency and a constraint of no short selling. Furthermore, carry trades are shown to be part of an optimal portfolio.

Details

Review of Accounting and Finance, vol. 19 no. 3
Type: Research Article
ISSN: 1475-7702

Keywords

Article
Publication date: 16 May 2016

Eva Marie Ebach, Michael Hertel, Andreas Lindermeir and Timm Tränkler

The purpose of this paper is to determine a financial institution's optimal hedging degree under consideration of costly earnings volatility induced by fair value accounted…

1098

Abstract

Purpose

The purpose of this paper is to determine a financial institution's optimal hedging degree under consideration of costly earnings volatility induced by fair value accounted derivatives. The discussion on the adoption of fair value accounting in the financial industry has been rather controversial in recent years. Under this accounting regime, the change in market values of specific assets must be considered as profit or loss. Critics argue that fair value accounting induces higher earnings volatility compared to historical cost accounting and, therefore, may initiate a downward spiral during recessions. Thus, increased earnings volatility induces costs, which can be explained by disappointed capital market expectations. Consequently, in general, a lowering of earnings volatility will be rewarded. Consistent with this theoretical finding, empirical research provides strong evidence that companies pursue income smoothing to reduce earnings volatility. In contrast to industrial corporations, financial institutions may easily reduce their earnings volatility by engaging in additional hedging activities. However, more intense hedging usually reduces expected profits.

Design/methodology/approach

Based on a research project initiated by a large German bank, this study quantitatively models the trade-off between the (utility of) costs of earnings volatility and the reduction of profit potential through additional hedging.

Findings

By conducting sensitivity analyses and simulations of the crucial factors of the trade-off, we examine relevant causal relationships to obtain first indications about the economic benefits of income smoothing.

Originality/value

To the best of our knowledge, we are the first to develop an optimization model that supports decision-making by attempting to determine an optimal (additional) hedging degree considering the costs induced by earnings volatility.

Details

The Journal of Risk Finance, vol. 17 no. 3
Type: Research Article
ISSN: 1526-5943

Keywords

Article
Publication date: 1 July 2014

Hernan Tejeda and Dillon Feuz

The purpose of this paper is to determine and contrast the risk mitigating effectiveness from optimal multiproduct time-varying hedge ratios, applied to the margin of a cattle…

Abstract

Purpose

The purpose of this paper is to determine and contrast the risk mitigating effectiveness from optimal multiproduct time-varying hedge ratios, applied to the margin of a cattle feedlot operation, over single commodity time-varying and naive hedge ratios.

Design/methodology/approach

A parsimonious regime-switching dynamic correlations (RSDC) model is estimated in two-stages, where the dynamic correlations among prices of numerous commodities vary proportionally between two different regimes/levels. This property simplifies estimation methods for a large number of parameters involved.

Findings

There is significant evidence that resulting simultaneous correlations among the prices (spot and futures) for each commodity attain different levels along the time-series. Second, for in and out-of-sample data there is a substantial reduction in the operation's margin variance provided from both multiproduct and single time-varying optimal hedge ratios over naive hedge ratios. Lastly, risk mitigation is attained at a lower cost given that average optimal multiproduct and single time-varying hedge ratios obtained for corn, feeder cattle and live cattle are significantly below the naive full hedge ratio.

Research limitations/implications

The application studied is limited in that once a hedge position has been set at a particular period, it is not possible to modify or update at a subsequent period.

Practical implications

Agricultural producers, specifically cattle feeders, may profit from a tool using improved techniques to determine hedge ratios by considering a larger amount of up-to-date information. Moreover, these agents may apply hedge ratios significantly lower than one and thus mitigate risk at lower costs.

Originality/value

Feedlot operators will benefit from the potential implementation of this parsimonious RSDC model for their hedging operations, as it provides average optimal hedge ratios significantly lower than one and sizeable advantages in margin risk mitigation.

Details

Agricultural Finance Review, vol. 74 no. 2
Type: Research Article
ISSN: 0002-1466

Keywords

Article
Publication date: 3 May 2016

Rui Zhou, Johnny Siu-Hang Li and Jeffrey Pai

The application of weather derivatives in hedging crop yield risk is gaining more interest. However, the further development of weather derivatives – particularly exchange-traded…

Abstract

Purpose

The application of weather derivatives in hedging crop yield risk is gaining more interest. However, the further development of weather derivatives – particularly exchange-traded – in the agricultural sector has been impeded by concerns over their hedging performance. The purpose of this paper is to develop a new framework to derive the optimal hedging strategy and evaluate hedging effectiveness.

Design/methodology/approach

This framework incorporates a stochastic temperature model, a crop yield model, a risk-neutral pricing method and a profit optimization procedure. Based on a large number of simulated scenarios, the authors study crop yield hedge for a future year. The authors allow the hedger to choose from different types of exchange-traded weather derivatives, and examine the impact of various factors on the optimal hedging strategy.

Findings

The analysis shows that hedging objective, pricing method and geographical location of the hedged exposure all play important roles in choosing the best hedging strategy and assessing hedging effectiveness.

Originality/value

This framework is forward-looking, because it focusses on the crop yield hedge for a future year rather than on the historical hedging effectiveness often studied in literature. It utilizes the most up-to-date information related to temperature and crop yield, and hence produces a hedging strategy which is more relevant to the year under consideration.

Details

Agricultural Finance Review, vol. 76 no. 1
Type: Research Article
ISSN: 0002-1466

Keywords

Article
Publication date: 4 February 2022

Dony Abdul Chalid and Rangga Handika

This study aims to investigate the benefits of commodity hedging in the global stock index, bond and foreign currency (FX) portfolios.

Abstract

Purpose

This study aims to investigate the benefits of commodity hedging in the global stock index, bond and foreign currency (FX) portfolios.

Design/methodology/approach

The authors compare various hedging strategies and factor transaction costs. The authors analyze equally weighted, dynamic hedging ratio, risk parity and reward to risk timing strategies. Volatilities are estimated using historical, GARCH(1,1), and APARCH(1,1) methods. In addition, the authors evaluate the portfolio's hedging performance (HP) based on four different dimensions: volatility (annualized standard deviation), Sharpe ratio (SR), HP, and high-low ratio (HL).

Findings

The authors observe different benefits of the commodity hedging strategy among financial assets (stocks, bonds or FX).The authors find that commodity hedging in the stock markets is the best option, if the authors optimize the hedging ratio using dynamic hedging from historical data. The authors also document that for stock portfolio managers, adding commodities will generate a more conservative strategy, whereas for bond and/or FX portfolio managers, adding commodities will generate a more aggressive strategy.

Originality/value

This study contributes to the literature by investigating commodity hedging in the global stock index, bond and FX portfolios. First, the authors provide details on the diversification benefits in the commodities. Second, the authors document the hedging strategy that is the best as a part of the diversification strategy by adding commodities. Third, the authors provide a practical analysis by reporting the financial assets portfolio that is appropriate for commodity hedging following the portfolio managers' objectives (e.g. reducing risks or improving the risk-reward ratio).

Details

Journal of Economic Studies, vol. 50 no. 2
Type: Research Article
ISSN: 0144-3585

Keywords

Article
Publication date: 5 September 2023

Taicir Mezghani, Mouna Boujelbène and Souha Boutouria

This paper investigates the predictive impact of Financial Stress on hedging between the oil market and the GCC stock and bond markets from January 1, 2007, to December 31, 2020…

Abstract

Purpose

This paper investigates the predictive impact of Financial Stress on hedging between the oil market and the GCC stock and bond markets from January 1, 2007, to December 31, 2020. The authors also compare the hedging performance of in-sample and out-of-sample analyses.

Design/methodology/approach

For the modeling purpose, the authors combine the GARCH-BEKK model with the machine learning approach to predict the transmission of shocks between the financial markets and the oil market. The authors also examine the hedging performance in order to obtain well-diversified portfolios under both Financial Stress cases, using a One-Dimensional Convolutional Neural Network (1D-CNN) model.

Findings

According to the results, the in-sample analysis shows that investors can use oil to hedge stock markets under positive Financial Stress. In addition, the authors prove that oil hedging is ineffective in reducing market risks for bond markets. The out-of-sample results demonstrate the ability of hedging effectiveness to minimize portfolio risk during the recent pandemic in both Financial Stress cases. Interestingly, hedgers will have a more efficient hedging performance in the stock and oil market in the case of positive (negative) Financial Stress. The findings seem to be confirmed by the Diebold-Mariano test, suggesting that including the negative (positive) Financial Stress in the hedging strategy displays better out-of-sample performance than the in-sample model.

Originality/value

This study improves the understanding of the whole sample and positive (negative) Financial Stress estimates and forecasts of hedge effectiveness for both the out-of-sample and in-sample estimates. A portfolio strategy based on transmission shock prediction provides diversification benefits.

Details

Managerial Finance, vol. 50 no. 3
Type: Research Article
ISSN: 0307-4358

Keywords

Article
Publication date: 1 June 2021

Mohamed Fakhfekh, Ahmed Jeribi, Ahmed Ghorbel and Nejib Hachicha

In a first place, the present paper is designed to examine the dynamic correlations persistent between five cryptocurrencies, WTI, Gold, VIX and four stock markets (SP500, FTSE…

Abstract

Purpose

In a first place, the present paper is designed to examine the dynamic correlations persistent between five cryptocurrencies, WTI, Gold, VIX and four stock markets (SP500, FTSE, NIKKEI and MSCIEM). In a second place, it investigates the relevant optimal hedging strategy.

Design/methodology/approach

Empirically, the authors examine how WTI, Gold, VIX and five cryptocurrencies can be applicable to hedge the four stock markets. Three variants of multivariate GARCH models (DCC, ADCC and GO-GARCH) are implemented to estimate dynamic optimal hedge ratios.

Findings

The reached findings prove that both of the Bitcoin and Gold turn out to display remarkable hedging commodity features, while the other assets appear to demonstrate a rather noticeable disposition to act as diversifiers. Moreover, the results show that the VIX turns out to stand as the most effectively appropriate instrument, fit for hedging the stock market indices various related refits. Furthermore, the results prove that the hedging strategy instrument was indifferent for FTSE and NIKKEI stock while for the American and emerging markets, the hedging strategy was reversed from the pre-cryptocurrency crash to the during cryptocurrency crash period.

Originality/value

The first paper's empirical contribution lies in analyzing emerging cross-hedge ratios with financial assets and compare hedging effectiveness within the period of crash and the period before Bitcoin crash as well as the sensitivity of results to refits choose to compare between short term hedging strategy and long-term one.

Details

International Journal of Emerging Markets, vol. 18 no. 4
Type: Research Article
ISSN: 1746-8809

Keywords

Article
Publication date: 19 June 2019

Yong Jae Shin and Unyong Pyo

This paper aims to develop hedging strategies using both futures and forward contracts and issuing risky debt when financially constrained firms are forced to operate in long…

Abstract

Purpose

This paper aims to develop hedging strategies using both futures and forward contracts and issuing risky debt when financially constrained firms are forced to operate in long horizon.

Design/methodology/approach

The authors present a model for developing hedging strategies using both futures and forward contracts and issuing risky debt. A theoretical model employing stochastic differential equations for forward hedging is illustrated with a numerical example over parameter values consistent with the literature.

Findings

A financially constrained firm with limited cash balance must hedge its liquidity with both future and forward contracts and issue risky debt to support its long-term operations. The firm can issue a minimal amount of risky debt by adding forward contracts into hedging and can increase its value higher than that when hedging with only futures contracts. We show numerically that hedging with both futures and forward contracts allows the firm to issue minimal risky debt in increasing its firm value.

Practical implications

When Metallgesellschaft nearly collapsed in 1993, it offered long-term forward contracts to its customers and attempted to hedge its risk by rolling over series of short-term futures contract. It created the situation of inherent mismatch in maturity structure. A financially constrained firm operating in a long horizon appears to commit its liquidity as long-term forward contracts, which cannot be fully hedged with series of futures contacts. The firm should hedge its liquidity with both futures and forward contracts and avoid liquidation with deadweight costs in its long-term operation.

Originality/value

This is the first study examining hedging strategies with both futures and forward contracts.

Details

Studies in Economics and Finance, vol. 36 no. 2
Type: Research Article
ISSN: 1086-7376

Keywords

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