Results 121 to 130 of about 6,728 (222)
Estimating National and Foreign Trade Elasticities Using Generalized Transport Costs
Journal of Regional Science, Volume 65, Issue 2, Page 471-496, March 2025.ABSTRACT We introduce the definition of two distinct trade elasticities corresponding to imports from regions located in the same country (national elasticities) and foreign regions located in other countries (foreign elasticities). We resort to a three‐tier nested CES utility structure to derive the corresponding demand gravity equations.
José L. Zofío +3 more
wiley +1 more source
Electronic Journal of Differential Equations, 2016 In this article, we consider the multiplicity of positive solutions for a class of Kirchhoff type problems with concave and convex nonlinearities. Under appropriate assumptions, we prove that the problem has at least two positive solutions, moreover ...
Xiaofei Cao, Junxiang Xu, Jun Wang
doaj
Tackling nonlinear price impact with linear strategies
Mathematical Finance, Volume 35, Issue 2, Page 422-440, April 2025.Abstract Empirical studies in various contexts find that the price impact of large trades approximately follows a power law with exponent between 0.4 and 0.7. Yet, tractable formulas for the portfolios that trade off predictive trading signals, risk, and trading costs in an optimal manner are only available for quadratic costs corresponding to linear ...
Xavier Brokmann +3 more
wiley +1 more source
Infinitely many solutions for quasilinear Schrödinger equation with concave-convex nonlinearities
Boundary Value ProblemsIn this work, we study the existence of infinitely many solutions to the following quasilinear Schrödinger equations with a parameter α and a concave-convex nonlinearity: 0.1 − Δ p u + V ( x ) | u | p − 2 u − Δ p ( | u | 2 α ) | u | 2 α − 2 u = λ h 1 ( x
Lijuan Chen +3 more
doaj +1 more source
Electronic Journal of Differential Equations, 2020 In this article, we study the multiplicity of positive solutions for the biharmonic equation of Kirchhoff type involving concave-convex nonlinearities, $$ \Delta^2u-\Big(a+b\int_{\mathbb{R}^N}|\nabla u|^2dx\Big)\Delta u+V(x)u =\lambda f_1(x)|u|^{q-2 ...
Fengjuan Meng +2 more
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The Economic Effects of ‘Excessive’ Financial Deepening
Oxford Bulletin of Economics and Statistics, EarlyView.ABSTRACT We study the causal implications of high levels of financial deepening for economic development and banking crises in a panel of countries over the past seven decades. We adopt a factor‐augmented heterogeneous difference‐in‐differences estimator and find, in contrast to the existing literature, that very high levels of financial development do
Rachel Cho +2 more
wiley +1 more source
Redistribution and labor market inclusion
The Scandinavian Journal of Economics, EarlyView.Abstract This paper incorporates labor market inactivity and long‐term unemployment into the framework of optimal redistributive taxation. We examine how a combination of education policy, public employment programs, unemployment benefits, and optimal income taxation can effectively address both redistributive goals and the persistent challenges of ...
Thomas Aronsson +2 more
wiley +1 more source
Multiple positive solutions for elliptic problem with concave and convex nonlinearities
Electronic Journal of Differential Equations, 2015 In this article, we consider the existence of multiple solutions to the elliptic problem $$\displaylines{ -\Delta u=\lambda u^q+u^s+\mu u^p\quad \text{in } \Omega,\cr u>0\quad \text{in } \Omega,\cr u=0\quad \text{on } \partial\Omega, }$$ where ...
Jiayin Liu, Lin Zhao, Peihao Zhao
doaj
Investigation of Solution Accuracy in PFEM Simulations Using Benchmark Problems
Proceedings in Applied Mathematics and Mechanics, Volume 26, Issue 2, June 2026.ABSTRACT The simulation of large topological changes, such as those occurring in Cone Penetration Testing (CPT) and vibratory pile driving, remains a major challenge in computational geomechanics. Excessive mesh distortions render classical approaches like the Finite Element Method (FEM) unsuitable, emphasizing the need for alternative methodologies ...
Antaeus Bettmann +4 more
wiley +1 more source
Exact Multiplicity of Positive Solutions for Convex-Concave-Convex Nonlinearities
Advances in Applied Mathematics, 2017 本文研究了具有凸-凹-凸非线性项的狄利克雷边值问题正解的分支曲线。通过时间映射分析法，证明了在非线性项为渐近次线性时，边值问题的正解分支曲线为S-型曲线，从而确定了边值问题的正解的确切个数。 In this paper we study the bifurcation curve of the Dirichlet boundary value problem with convex- concave-convex nonlinearities. By using Time-map techniques, we prove that the bifurcation curve of the boundary value problem is S-shaped when the ...
openaire +1 more source