The present work focused on estimating the cross-correlation between the time series of agricultural production variables and the variables of the Space Weather Wolf Number (W) in the United States, in both cases the annual averages were processed. The Fast Fourier Transform (FFT) methodology...

We discuss properties of alternatives or complements to GDP as a measure of welfare at business cycle frequencies. We argue that these figures are not useful to measure the welfare costs of business cycles. First, data is not available at an appropriate quality and frequency. Second, since the...