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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...
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...
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 ...
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...
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...
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 ...
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...

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