Hedging the Price Risk of Crop Revenue Insurance through the Options Market

Crop revenue insurance is an exception in the insurance industry offering a guarantee subsuming a highly systematic risk- price variability. This study examines whether crop insurance companies could use put and call options to hedge the price risk present in corn revenue insurance. The behavioral model used to examine hedging optimization behavior of a crop producer with crop insurance by Coble, Heifner, and Zuniga (2002) is modified to examine optimal hedge ratio of a company selling revenue insurance. The crop insurance summary of business from 1985-2015 for corn revenue policies was simulated. Corn futures prices were collected from the Commodity Research Bureau databases. Results show that net return from call and put options can hedge indemnities paid by corn RP and RP-HPE resulting from the price variability in some scenario. This suggests hedging the price risk of corn revenue insurance through options could be a viable practice for crop insurers

Positive Solutions for Fractional p- Laplace Semipositone Problem with Superlinear Growth

We consider a semipositone problem involving the fractional $p$ Laplace operator of the form \begin{equation*} \begin{aligned} (-\Delta)_p^s u &=\mu( u^{r}-1) \text{ in } \Omega,\\ u &>0 \text{ in }\Omega,\\ u &=0 \text{ on }\Omega^{c}, \end{aligned} \end{equation*} where $\Omega$ is a smooth bounded convex domain in $\mathbb{R}^N$, $p-1<r<p^{*}_{s}-1$, where $p_s^{*}:=\frac{Np}{N-ps}$, and $\mu$ is a positive parameter. We study the behaviour of the barrier function under the fractional $p$-Laplacian and use this information to prove the existence of a positive solution for small $\mu$ using degree theory. Additionally, the paper explores the existence of a ground state positive solution for a multiparameter semipositone problem with critical growth using variational arguments.Comment: 35 pages, 0 figure

Epidemiologisk atrieflimmerforskning i Tromsøundersøkelsen. Hva har vi lært?

Publisert versjon : https://indd.adobe.com/view/38fe8e57-2b01-42c5-a447-34ecdeeb9c55Tromsøundersøkelsen er Norges lengste, mest omfattende og best besøkte epidemiologiske befolkningsundersøkelse gjennom mer enn 40 år. Forskningen har gitt oss viktig kunnskap om helse og sykdom og bidrar til bedre pasientbehandling, nasjonalt og internasjonalt. Atrieflimmerforskning har bidratt til ny kunnskap om utbredelse og risikofaktorer