We discuss the possibility of obtaining model-free bounds on volatility derivatives, given present market data in the form of a calibrated local volatility model. A counter-example to a wide-spread conjecture is given. keywords: local vol, Dupire’s formula; MSC: 91G99; JEL: G10.

Instruments measuring spectral reflectance are extensively used by many researchers to determine the relationship between grain yield (GY), quality, and physiological traits of bread wheat genotypes at different developmental stages. This study was carried out under rain-fed conditions in 2019-2020 2020-2021 growing seasons Muş province. The experiment set up a randomized block experimental des...

This paper presents a new approach for modelling the connectedness between asset returns. We adapt measure of Diebold and Yilmaz, which is based on forecast error variance decomposition VAR model. However, their hinges critical assumptions with regard to variance–covariance matrix terms. propose use more agnostic empirical approach, machine learning algorithm, identify contemporaneous structure...

The differentiation of colorectal cancer cells is associated with the arrest of tumor growth and tumor regression. However, the mechanism of such tumor cell differentiation has not yet been elucidated. Several adenocarcinoma cell lines, including HT29 which differentiates only upon stimulation with a differentiation agent, have been used for the study of colorectal cells. Since we had previousl...

Fecal specimens from 78 calves involved in outbreaks of calf diarrhea which occurred in three farms in Victoria, Australia, in 1988 were analyzed for rotaviruses. Thirty-eight samples were positive for group A virus antigen by enzyme-linked immunosorbent assay, and 20 of these contained viral double-stranded RNAs that could be detected by polyacrylamide gel electrophoresis. Two major electrophe...

We identified a genotype G10P[14] rotavirus strain in 5 children and 1 adult with acute gastroenteritis from the Northern Territory, Australia. Full genome sequence analysis identified an artiodactyl-like (bovine, ovine, and camelid) G10-P[14]-I2-R2-C2-M2-A11-N2-T6-E2-H3 genome constellation. This finding suggests artiodactyl-to-human transmission and strengthens the need to continue rotavirus ...

We report a case of pulmonary cystic echinococcosis in a child from eastern Finland with no history of travelling abroad. The cyst was surgically removed and the organism molecularly identified as Echinococcus canadensis genotype G10. This parasite is maintained in eastern Finland in a sylvatic life cycle involving wolves and moose; in the present case, the infection was presumably transmitted ...

We review the literature on return and cash flow growth predictability form the perspective of the present-value identity. We focus predominantly on recent work. Our emphasis is on U.S. aggregate stock return predictability, but we also discuss evidence from other asset classes and countries. JEL classification: G10, G12, G14, G35.

It is shown that the absence of call spread, butterfly spread and calendar spread arbitrages is sufficient to exclude all static arbitrages from a set of option price quotes across strikes and maturities on a single underlier.  2005 Elsevier Inc. All rights reserved. JEL classification: G10; G12; G13; G14