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ID: 192906

Obesity survival paradox and melanoma-related mortality / Arbel, Yuval; Arbel, Yifat ; Kerner, Amichai ; Kerner, Miryam

Arbel, Yuval	Journal Article
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Melanoma is an increasingly common skin cancer with approximately 200,000 new cases discovered annually worldwide. This article seeks to estimate the relationships between mortality rate from melanoma, prevalence of obesity and annual new melanoma cases per 100,000 persons in the population. By way of doing so, it uses a quadratic model to examine the possibility of the obesity survival paradox, namely, the counter-intuitive possibility that a higher prevalence of obesity reduces the mortality risk from melanoma. The outcomes support a non-monotonic relationship, with implications for treatment decisions regarding melanoma patients who are obese versus those with a normal weight (BMI < 25).

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Israel ; Obesity ; Mortality Rate ; Melanoma

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ID: 189423

What caused what? The Israeli Shekel and cryptocurrencies / Arbel, Yuval; Cohen, Gil

Cohen, Gil	Journal Article
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This article examines the relationships between 21 fiat currencies to Bitcoin price movements using daily data from the beginning of 2012 to the end of March 2021. We use a two-stage analysis. The first stage excludes currencies, which are uncorrelated with the daily returns of the Bitcoin. The second stage is to run a Granger-causality test on the remaining six currencies to examine whether lagged excess returns on the Bitcoin Granger-cause the excess returns on the currencies or vice versa. Results support the conclusion that the return on Bitcoin Granger-Cause the return on the Israeli Shekel (ILS), but not vice versa. A possible explanation of these outcomes is the susceptibility of financial investors in Bitcoin and the ILS to the Israeli economy.

Key Words

Economy ; Israel ; Fiat Currencies ; Bitcoin ; Cryptocurrencies ; Shekel ;
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