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By introducing operating inflexibility into the standard capital structural model, we build a two-regime model to show that the negative relation between profitability and financial leverage is not evidence against the trade-off model. Whereas firms increase their contractual operating costs...
Persistent link: https://www.econbiz.de/10010800980
We examine the impact of board diversity on both the corporate value and equity risk of British companies since the financial crisis. We find that the inclusion of overseas directors on boards improves market value and reduces equity risk. When the number of female directors included on the...
Persistent link: https://www.econbiz.de/10011206317
Different theoretical and numerical methods for calculating the fair-value of a variance swap give rise to systematic biases that are most pronounced during volatile periods. For instance, differences of 10-20 percentage points would have been observed on fair-value index variance swap rates...
Persistent link: https://www.econbiz.de/10011206318
We consider a number of ways of testing whether macroeconomic forecasters herd or anti-herd, i.e., whether they shade their forecasts towards those of others or purpose- fully exaggerate their differences. When applied to survey respondents expectations of inflation and output growth the tests...
Persistent link: https://www.econbiz.de/10011206319
Most research on option hedging has compared the performance of delta hedges derived from different stochastic volatility models with Black-Scholes-Merton (BSM) deltas, and in particular with the `implied BSM’ model in which an option’s delta is based on its own market implied volatility....
Persistent link: https://www.econbiz.de/10011206320
This paper explores the properties of random orthogonal matrix (ROM) simulation when the random matrix is drawn from the class of rotational matrices. We describe the characteristics of ROM simulated samples that are generated using random Hessenberg, Cayley and exponential matrices and compare...
Persistent link: https://www.econbiz.de/10011206321
Model-based estimates of future uncertainty are generally based on the in-sample fit of the model, as when Box-Jenkins prediction intervals are calculated. However, this approach will generate biased uncertainty estimates in real time when there are data revisions. A simple remedy is suggested,...
Persistent link: https://www.econbiz.de/10011210423
This paper argues that the relatively voluminous surviving records about foreign exchange (FX) rates in the Middle Ages can help to illuminate the much murkier question of medieval interest rates. We first explain how the medieval FX market operated and its links to the money market. Next, we...
Persistent link: https://www.econbiz.de/10011210424
This paper will show how the relatively voluminous surviving records about exchange rates in the middle ages can help to illuminate the much murkier question of medieval interest rates. We will first explain how the medieval FX market operated and its links to the money market. Next, we will set...
Persistent link: https://www.econbiz.de/10011210425
Using five years of internal proprietary data collected directly from United Nations supported Principles for Responsible Investment (PRI) signatories, we examine the attributes of the stakeholder relationship between investment organisations and the PRI. The analysis is carried out in the...
Persistent link: https://www.econbiz.de/10011210426