Keyphrases
Fixed Effects
100%
Fixed Effects Panel Regression
100%
Marginal Effects
100%
Nonparametric Estimator
100%
Nonparametric Estimation
100%
Nonlinear Relationship
50%
Panel Data Model
50%
Nitrogen Oxides
50%
First Difference
50%
US States
50%
Individual-specific
50%
Curve-based
50%
Within-group
50%
Transformation Approach
50%
Environmental Kuznets Curve
50%
Locally Weighted
50%
Local Linear Estimation
50%
One-step Estimation
50%
Linear Least Squares Estimation
50%
Local Linear
50%
Mathematics
Marginals
100%
Nonparametric Estimation
100%
Time Average
50%
Linear Least Squares Estimation
50%
Nonlinear Relationship
50%
Economics, Econometrics and Finance
Fixed Effects
100%
Panel Data Model
100%
Panel Study
33%
Environmental Kuznets Curve
33%