This paper proposes a method for measuring investor risk appetite based on the variation in the ratio of risk-neutral to subjective probabilities used by investors in evaluating possible future returns to an asset. Unlike other indicators advanced in the literature, our measure of market...

In the conventional view of inflation, the New Keynesian Phillips curve (NKPC) captures most of the persistence in inflation. The sources of persistence are twofold. First, the "driving process" for inflation is quite persistent, and the NKPC implies that inflation must "inherit" this...

There is much confusion in the literature over Hurst exponents. Recently, we took a step in the direction of eliminating some of the confusion. One purpose of this paper is to illustrate the difference between fBm on the one hand and Gaussian Markov processes where H≠1/2 on the other. The...

Russian economy was often under the influence of crises. The last one in 1998 has not been time-consuming, and after the phase of stagnation Russia is taking benefits of stabile growth till now. However, the sources of this growth are off the country and the prices of Russian export goods could...

A new multivariate random walk model with slowly changing parameters is introduced and investigated in detail. Nonparametric estimation of local covariance matrix is proposed. The asymptotic distributions, including asymptotic biases, variances and covariances of the proposed estimators are...