This article aims to examine methods of optimizing GMM-based voice conversion systems performance in which GMM method is introduced as the basic method for improvement of voice conversion systems performance. In the current methods, due to using a single conversion function to convert all speech units and subsequent spectral smoothing arising from statistical averaging, we will observe quality ...

This research intends to explore the relationship between capital buffer, nominator effect, denominator and economic growth for large insured commercial banks of USA. The study applied a two-step system Generalized Method Moment (GMM) framework by taking unique comprehensive dataset over period extending from 2002 2018. found countercyclical buffer growth. In case well-capitalized banks, this i...

The intensively debated issue of whether trade globalization leads to a race (climb) the bottom (top) such that environmental policy stringency is loosened (strengthened) still far from being uncontroversial. This paper provides new empirical evidence standpoint North (advanced) countries using both generalized methods moment (GMM) and GMM quantile estimators for dynamic panel data models. It f...

To obtain consistency and asymptotic normality, a generalized method of moments (GMM) estimator typically is defined to be an approximate global minimizer of a GMM criterion function. To compute such an estimator, however, can be problematic because of the difficulty of global optimization. In consequence, practitioners usually ignore the problem and take the GMM estimator to be the result of a...

We study the well-known multiplicative log-normal cascade process in which the multiplication of Gaussian and log normally distributed random variables yields time series with intermittent bursts of activity. Due to the nonstationarity of this process and the combinatorial nature of such a formalism, its parameters have been estimated mostly by fitting the numerical approximation of the associa...

This paper introduces a general method to convert a model defined by moment conditions involving both observed and unobserved variables into equivalent moment conditions involving only observable variables. This task can be accomplished without introducing infinite-dimensional nuisance parameters using a least-favorable entropy-maximizing distribution. We demonstrate, through examples and simul...

To achieve high-quality corporate development, it is essential to undergo green transformation. Unlike previous literature, this paper explores relevant mechanisms affecting firms’ transformation from a novel perspective of credit guidelines (GCG). Using A-share listed industrial enterprises in China 2010 2020 as sample, we combine the generalized moment estimation model (GMM) with difference-i...