twostepgmm的计算量相对较大，但通常可以产生更准确的估计结果。因此，onestepgmm和twostepgmm的区别在于估计参数所进行的迭代步骤的次数。onestepgmm只进行一次迭代，而twostepgmm进行两次迭代（一步估计和二步估计）。
onestepgmm：可能会产生较大的估计偏差，因为其仅通过一次迭代就得出最终结果。twostepgmm：通常可以产生更准确的估计结果，因为通过两次迭代，可以更精确地调整参数估计。综上所述，onestepgmm和twostepgmm的主要区别在于它们进行迭代估计的步骤次数，这直接影响了它们的计算量和估计准确性。
Do firm-level variables impact dividend pay-out? Examining application of two-step system GMM panel modelSuzan DsouzaHassan NasseredineHoushang HabibniyaNaliniprava Tripathy
I used until now, the one-step system GMM estimator with robust standard errors. xtdpd g l.g FD CL I LQ RS RF ddummy p, dgmmiv(I LQ RS FD RF ddummy l.g , lagrange(4)) lgmmiv(I LQ RS ddummy FD RF l.g, lag(4)) iv(p) vce(robust) artests(2) Dynamic panel-data ...
A two-step system GMM is applied and the findings reveal a significant negative relationship between credit risk and bank performance in the SSA region. The risk committee has a significant positive impact on the performance of banks in the SSA region. Bank management is encouraged to embrace a...
The ESPL provides improvement over one-step GMM estimators by including additional terms to automatically reduce higher order bias. The first order sampling properties are shown to be equivalent to efficient two-step GMM. New tests are introduced for hypothesis on the model's parameters. The higher...
Combined with the objective fact that China’s logistics industry inward foreign direct investment (IFDI) and outward foreign direct investment (OFDI) and total factor productivity (TFP) of space development is not balanced, this study used the system generalized method of moments (GMM) and geograph...
Hypothesis Testing with Two-Step GMM Estimators 来自 Semantic Scholar 喜欢 0 阅读量: 31 作者: Simon Gilchrist,Charles P. Himmelberg 摘要: Two-step generalized method of moment (2SGMM) estimation procedures are often applied to models that impose nonlinear cross-equation restrictions. Though less...
Another study on determinants of Ethiopian agricultural exports using two-step GMM by Eshetu and Mehare [2], revealed that the road network, the corruption index of the country, gross domestic product, and lagged export values as causes for low performance of the sector, consistency findings ...
Arellano and Bond (1991) develop new one-step and two-step GMM estimators for dynamic panel data. See [XT] xtabond for a discussion of these estimators and Stata's implementation of them. In their article, Arellano and Bond (1991) apply their new estimators to a model of dynamic labor ...