Empirical evidence is found for the β and σ convergence towards steady states of labor productivity across provinces production sectors in China based on estimates static, dynamic quintile panel data models. The pattern convergences to be asymmetric according quantile regression estimations. was more obvious when controls human capital, FDI, industrial concentration inequality were introduced r...

This paper studies semiparametric identification in linear index discrete response panel data models with fixed effects. Departing from the classic binary static model, this examines dynamic model and ordered model. It is shown that under mild distributional assumptions on effect time-varying unobservables point-identification fails, but informative bounds regression coefficients can still be d...

background: in this article, we used a panel smooth transition regression model to estimate the relationship between health expenditure and income. this approach is employed to continuously model changing parameters among countries and during time. it is thus suitable for eliminating heterogeneity among countries and the variability of the relationship between gross domestic product (gdp) and h...

Spatial panel data models are widely used in empirical studies. The existing theories of spatial models so far have largely confine the analysis under the assumption of parameters stabilities. This is unduely restrictive, since a large number of studies have well documented the presence of structural changes in the relationship of economic variables. This paper proposes and studies spatial pane...

Regression models for panel data are increasingly widely used in socio-economic studies because they consider the relationship between many objects over time; thus can better measure unobservable effects. This study aims to test Okun's law on economic growth rate and unemployment two groups of countries (developed developing). The was conducted period 2008–2019 using a number static dynamic reg...

Automotive design engineers face the challenging problem of developing products in highly competitive markets. In this regard, using conceptual models in the first step of automotive development seems so necessary. In this paper, to make a body in white conceptual model, an engineering approach is developed for the replacement of beam-like structures, joints, and panels in a vehicle model. The ...

in this research, moisture sorptions of sayer date were determined at 20, 30, 40 and 60°c, using the standard static gravimetric method developed by the european cooperation project cost 90. several mathematical models, namely gab, bet, iglesias & chirif and halsey were employed to fit the experimental data through non-linear regression. results indicate that equilibrium moisture content increa...

Static deformation modulus is recognized as one of the most important parameters governing the behavior of rock masses. Predictive models for the mechanical properties of rock masses have been used in rock engineering because direct measurement of the properties is difficult due to time and cost constraints. In this method the deformation modulus is estimated indirectly from classification syst...

This paper surveys panel data methods for count dependent variable that takes nonnegative integer values, such as number of doctor visits. The focus is on short panels, as the literature has concentrated on this case. The survey covers both static and dynamic models with random and fixed effects. The paper surveys quasi-ML methods based on the Poisson, as well as richer more parametric models n...