This paper evaluates the effects of high-frequency uncertainty shocks on a set of lowfrequency macroeconomic variables representative of the U.S. economy. Rather than estimating models at the same common low-frequency, we use recently developed econometric models, which allows us to deal with data of different sampling frequencies. We find that credit and labor market variables react the most t...

Commodities have become a new tool for global diversification among stocks, currencies, and other assets. Their dynamics statistical characteristics crucial to financial research. Furthermore, in the connected world of today, importance uncertainties is greater than ever. This article examines comovements between energy commodities influence uncertainty measures through bi, partial multiple wav...

This paper describes the application of approximate methods to invert airborne magnetic data as well as helicopter-borne frequency domain electromagnetic data in order to retrieve a joint model of magnetic susceptibility and electrical resistivity. The study area located in Semnan province of Iran consists of an arc-shaped porphyry andesite covered by sedimentary units which may have potential ...

This paper deals with a new framework in analyzing the formal mathematical correspondence between quantum mechanics and time-frequency representations of a signal. It is also shown that joint time-frequency distributions have a close link with Heisenberg uncertainty relations if the observables are taken as fuzzy entities. This result contradicts the arguments of Cohen [IEEE Proc. 77(7):941 (19...