搜索结果: 1-7 共查到“工学 ects”相关记录7条 . 查询时间(0.069 秒)
Bias Reduction for Dynamic Nonlinear Panel Models with Fixed Effects
Fixed Eff ects Dynamic Nonlinear Panel Models
2015/9/22
The fixed effects estimator of panel models can be severely biased because of well-known incidental parameter
problems. It is shown that this bias can be reduced as T grows with n. We con...
Causal e§ects of monetary shocks: Semiparametric conditional independence tests with a multinomial propensity score
conditional independence tests instrument
2015/9/22
Macroeconomists have long been concerned with the causal e§ects of monetary policy. When the identiÖcation of causal e§ects is based on a selection-on-observables assumption, non-causality amount...
Asymptotic Distribution of MisspeciÖed Random E§ects Estimator for a Dynamic Panel Model with Fixed E§ects When Both n and T are Large
panel model random e§ects
2015/9/22
We consider a dynamic panel AR(1) model with Öxed e§ects when both n and T are large. It is shown
that the MLE motivated by the random e§ects assumption is asymptotically unbiased even when the
...
Asymptotically Unbiased Inference for a Dynamic Panel Model with Fixed Effects When Both n and T are Large
Asymptotically Unbiased Inference Dynamic Panel Model
2015/9/22
We consider a dynamic panel AR(1) model with fixed effects when both n and T are large. Under the
“T fixed n large” asymptotic approximation, the ordinary least squares (OLS) or Gau...
Bodies having Minimum Pressure Drag in Supersonic Flow-Investigating Nonlinear Effects
Minimum Pressure Drag Supersonic Flow-Investigating Nonlinear Eff ects
2015/7/2
One of the most interesting problems in supersonic aerodynamics has been to find profile shapes that have minimum pressure drag, subject to a set of geometric constraints.Considerable work...
Efficiency above the Shockley−Queisser Limit by Using Nanophotonic Effects To Create Multiple Effective Bandgaps With a Single Semiconductor
Photon management nanostructured solar cells Shockley− Queisser limit light trapping tandem solar cells
2015/8/6
We present a pure photonic approach to overcome the Shockley−Queisser limit. A single material can show different effective bandgap, set by its absorption spectrum, which depends on ...
Silage-corn harvesting machinery traffi c eff ects on soil bulk density and water permeability
repeated traffi c passes silage harvester soil compaction soil physical damage soil porosity
2014/2/24
Soil compaction caused by machinery traffi c aff ects the growth of agricultural crops and also has environmental eff ects
like soil damage and erosion. Field experiments were cond...