The intuition behind linear regression can be difficult for students to grasp particularly without a readily accessible context. This paper uses basketball statistics to demonstrate the purpose of linear regression and to explain how to interpret its results. In particular, the student will...

We evaluate the relative performance of logistic credit risk models that were selected by means of standard stepwise model selection methods and average" models obtained by Bayesian model averaging (BMA). Our bootstrap analysis shows that BMA should be considered as an alternative to the...

Most existing hedging approaches are based on neutralizing risk exposures defined under a pre-specified model. This paper proposes a new, simple, and robust hedging approach based on the affinity of the derivative contracts. As a result, the strategy does not depend on assumptions on the...

We argue that the practise of valuing the portfolio is important for the calculation of the VaR. In particular, the seller (buyer) of an asset does not face horizontal demand (supply) curves. We propose a partially new approach for incorporating this fact in the VaR and in an empirical...

In the banking industry, the common practice to correlate default and migration events of various guarantors is to use correlated asset price returns. This approach, which is basically a copula approach, is used also by KMV's GCorr model and JPMorgan's CreditMetrics model. However, these models...

Financial markets are typically characterized by high (low) price level and low (high) volatility during boom (bust) periods, suggesting that price and volatility tend to move together with different market conditions/states. By proposing a simple heterogeneous agent model of fundamentalists and...

This study is aimed at developing and validating an index designed to measure the level of social disclosure of external social programmes implemented by firms listed on the Brazilian stock market. Based on Ramanathan (1976), Haydel (1989) and Hammond and Miles (2004), the index of social...

We introduce a new model for describing the fluctuations of a tick-by-tick single asset price. Our model is based on Markov renewal processes. We consider a point process associated to the timestamps of the price jumps, and marks associated to price increments. By modeling the marks with a...

This paper aims to show the impact of financial variables on the process of convergence between selected European Union and Balkan countries. Indeed, after a delay in the realization of structural changes – result of historical legacy and circumstances in which the transition process took...

In the last few years, copulas have been widely applied in many field of studies. Concentrating our attention on financial applications, we pursue the goal to detect multivariate atypical observations by extending to elliptical copulas the forward search originally introduced in linear and...