Fang Liu, Qamruzzaman Md
College of Economic and Management, Qinghai Minzu University, Xining, China.
School of Business and Economics, United International University, Dhaka, Bangladesh.
Front Psychol. 2021 Oct 8;12:720887. doi: 10.3389/fpsyg.2021.720887. eCollection 2021.
This study's motivation is to explore the relationship pattern between remittance, trade openness, and inequality of selected south Asian countries for the 1976-2018 period. The study performed non-linear tests, including unit root tests, non-linearity applying ordinary least squares (OLS) and BDS tests, non-linear autoregressive distributed lagged (NARDL) tests, and asymmetry causality tests to assess their association. Study findings with non-linear unit root tests suggest that the research variables follow the non-linear process of becoming stationary from non-stationary. The non-linear OLS and BDS test results confirm the existence of non-linearity among research variables, implying rejection of the null hypothesis of "no non-linearity." Furthermore, the results of the Wald test in NARDL confirm the availability of asymmetric links among variables. Besides this, the results of NARDL confirm the long-run asymmetric relationship between remittances, trade openness, and inequality in all sample nations. Findings suggest that both positive and negative shocks in remittances and trade openness is critical to either instituting or vexing the present state of inequality in the economy in the long term. In the directional relationship with asymmetry causality, the study shows that the feedback hypothesis holds to explain the asymmetric causal effects that are positive shocks in remittances and trade openness toward inequality.
本研究的动机是探索1976 - 2018年期间选定南亚国家汇款、贸易开放度和不平等之间的关系模式。该研究进行了非线性检验,包括单位根检验、应用普通最小二乘法(OLS)和BDS检验的非线性检验、非线性自回归分布滞后(NARDL)检验以及不对称因果关系检验,以评估它们之间的关联。非线性单位根检验的研究结果表明,研究变量遵循从非平稳变为平稳的非线性过程。非线性OLS和BDS检验结果证实了研究变量之间存在非线性,这意味着拒绝了“不存在非线性”的原假设。此外,NARDL中的Wald检验结果证实了变量之间存在不对称联系。除此之外,NARDL的结果证实了所有样本国家中汇款、贸易开放度和不平等之间存在长期不对称关系。研究结果表明,汇款和贸易开放度的正向和负向冲击对于长期建立或困扰经济中不平等的现状都至关重要。在与不对称因果关系的方向性关联中,该研究表明反馈假说成立,用以解释汇款和贸易开放度对不平等的正向冲击这种不对称因果效应。