This paper conducts a systematic statistical analysis of the characteristics of the
geographical empirical distributions for the numbers of both cumulative and daily confirmed …

We carry out a time series analysis on the yearly crop yield data in six east African countries
(Burundi, Kenya, Somalia, Tanzania, Uganda and Rwanda) using the autoregressive …

Abstract The novel coronavirus (COVID-19) was first identified in China in December 2019.
Within a short period of time, the infectious disease has spread far and wide. This study …

Several governments worldwide aim at fostering agricultural productivity growth by providing
investment support. However, the policy's effect on trade for middle-and low-income …

In the seminal book “Les Inégalités Économiques,” Gibrat (Les Inégalités Économiques,
Librairie du Recueil Sirey, Paris, 2013) proposed the law of proportional effect and claimed …

The period from January 2020 to December 2022 was marked by a confluence of major
events, including the COVID-19 pandemic, the Russia–Ukraine war, the energy crisis …

Abstract We study two Bayesian (Reference Intrinsic and Jeffreys prior), two frequentist (MLE
and PWM) approaches and the nonparametric Hill estimator for the Pareto and related …

This work conducts a systematical analysis on the distribution characteristics of the COVID-
19 numbers for both cumulative and daily confirmed cases and deaths in county, city, and …

The appropriate choice of a threshold level, which separates the tails of the probability
distribution of a random variable from its middle part, is considered to be a very complex and …

In this article, we show that the growth process of US county-level farmland is remarkably
consistent with the Gibrat's law of proportionate effect, an empirical regularity frequently …