Results 151 to 160 of about 12,358 (240)

The Natural Components of a Regular Linear System

Oxford Bulletin of Economics and Statistics, EarlyView.
ABSTRACT The analysis of a finite‐dimensional regular linear system may be simplified by separating the system into its natural components. The natural components are smaller linear systems on separate subspaces whose dimensions sum to the dimension of the original linear system.
Brendan K. Beare, Phil Howlett
wiley   +1 more source

A qualitative study on the stability and existence of solutions in a fractional-order water pollution model via the predictor-corrector approach. [PDF]

Sci Rep
Iqbal N, Archana DK, Khan MNI, Prakasha DG.   +3 more
europepmc   +1 more source

Panel Sequential Group Estimation of Interactive Effects Models

Oxford Bulletin of Economics and Statistics, EarlyView.
ABSTRACT This paper proposes a novel procedure to identify latent groups in the slopes of panel data models with interactive effects. The method is straightforward to apply and relies only on closed‐form estimators when evaluating the objective function.
Ignace De Vos, Joakim Westerlund
wiley   +1 more source

Numerical study on fractional order nonlinear SIR-SI model for dengue fever epidemics. [PDF]

Sci Rep
Verma L, Meher R, Nikan O, Al-Saedi AA.
europepmc   +1 more source

Tariff: The Most Beautiful Word in the Dictionary?

Review of International Economics, EarlyView.
ABSTRACT We consider the welfare impacts of US tariff policy at levels proposed by President Donald J. Trump. General‐equilibrium simulations under a widely used transparent one‐sector trade model reveal sizable US welfare losses. When we extend the model to include bilateral firm selection and high resolution input–output linkages, the US losses ...
Edward J. Balistreri, Suraiya Binte Ali, Christine McDaniel   +2 more
wiley   +1 more source

Bielecki-Ulam stability of a hammerstein-type difference system. [PDF]

MethodsX
Rahmat G, Ahmad S, Sarwar M, Abodayeh K, Chasreechai S, Sitthiwirattham T.   +5 more
europepmc   +1 more source

The Surprising Bias of PPML Estimates of Structural Gravity Models With Two‐Way Fixed Effects

Review of International Economics, EarlyView.
ABSTRACT The previous literature has shown that the Poisson Pseudo‐Maximum Likelihood (PPML) estimator provides consistent and asymptotically unbiased estimates of the parameters of structural gravity models with two‐way fixed effects, although their standard errors need correction.
Ben Shepherd, Tom Zylkin
wiley   +1 more source

Square integrable solutions and stability of a second-order stochastic integro-differential equation. [PDF]

Sci Rep
Oudjedi-Damerdji LF, Meziane M, Djidel O, Boulaaras S, Alharbi A.   +4 more
europepmc   +1 more source

Analysis of variable-order fractional enzyme kinetics model with time delay. [PDF]

Sci Rep
Agilan K, Naveen S, Suganya S, Parthiban V.   +3 more
europepmc   +1 more source

Chromatic number and regular subgraphs

Bulletin of the London Mathematical Society, EarlyView.
Abstract In 1992, Erdős and Hajnal posed the following natural problem: Does there exist, for every r∈N$r\in \mathbb {N}$, an integer F(r)$F(r)$ such that every graph with chromatic number at least F(r)$F(r)$ contains r$r$ edge‐disjoint cycles on the same vertex set? We solve this problem in a strong form, by showing that there exist n$n$‐vertex graphs
Barnabás Janzer, Raphael Steiner, Benny Sudakov   +2 more
wiley   +1 more source