Contingent Convertibles ("CoCos") are contingent capital instruments which convert into shares, or have a principal write down, if a trigger event takes place. CoCos exhibit the undesirable so-called "death-spiral effect": by actively hedging the equity risk, investors can (unintentionally)...

In this paper we study the asymptotic behaviour of power and multipower variations of stochatstic processes. Processes of the type considered serve in particular, to analyse data of velocity increments of a uid in a turbulence regime with spot intermittency sigma. The purpose of the present...

Convergence in probability and central limit laws of bipower variation for Gaussian processes with stationary increments and for integrals with respect to such processes are derived. The main tools of the proofs are some recent powerful techniques of Wiener/Itocirc;/Malliavin calculus for...

We present some new asymptotic results for functionals of higher order differences of Brownian semi-stationary processes. In an earlier work we have derived a similar asymptotic theory for first order differences. However, the central limit theorems were valid only for certain values of the...

In this paper we find that Fama and French factors can explain the future behavior of three macroeconomic variables of the Brazilian economy: GDP, industrial production and inflation. The results show that these three factors explain the future behavior of the macroeconomic variables with a...

We study the optimal continuous trading strategy of an insider who is subject to the possibility of law penalties due to her illegal trading activity. This possibility was absent in previous works. Also, we discuss how to obtain the optimal penalty rule that maximize a welfare function

Issuing CoCo bonds is a possible way for banks to protect against economic uncertainty scenario. However, it remains unclear if CoCo bonds will be useful in loss absorption for issuers in the event of another financial distress. Using the model of Systemic Risk proposed by Brownlees and Engle...