The Two-Stage Least Squares (2-SLS) is a well known econometric technique used to estimate the parameters of a multi-equation (or simultaneous equations) econometric model when errors across the equations are not correlated and the equation(s) concerned is (are) over-identified or exactly...

Arnold Zellner and Nagesh Revankar in their well-known paper “Generalized Production Functions” [The Review of Economic Studies, 36(2), pp. 241-250, 1969] introduced a new generalized production function, which was illustrated by an example of fitting the generalized Cobb-Douglas function to...

A high degree of multicollinearity among the explanatory variables severely impairs estimation of regression coefficients by the Ordinary Least Squares. Several methods have been suggested to ameliorate the deleterious effects of multicollinearity. In this paper we aim at comparing the...

Our day-to-day experience suggests that certain variables are local in their effects. The influence of such variables is limited within the boundaries of the spatial entity (district) where they are physically located. In contrast, the effects of some other variables are percolating or pervasive...

Ecofin and Oecd methodology is used to reconstruct the historical evolution of public current health care expenditure for Italy and Lazio (an Italian Region). The reconstructed evolutions allow to detect what have been the per-capita expenditures per age brackets in absolute values (Euro) in...

Social sector with the objective to satisfy the welfare needs of the people and to correct the imbalances in the economy claims a sizeable proportion of the public expenditure and has emerged as a significant sector. This paper in this regard is a state level analysis on the growth of public...

The circular interplay between demography-employment-productivity-PayGo is investigated for Italy and Italian geographical repartitions. Looking forward to the mid-long run, the paper offers simulations of the burden each effective worker and each active citizen will have to bear to finance via...

The circular interplay between demography-employment-productivity-PayGo is investigated for Europe and Us. Looking forward to the mid-long run, the paper offers simulations of the burden each effective worker and each active citizen will have to bear to finance via pay-as-you-go public health...

We use the same methodology, that Ecofin-Oecd apply for projecting expenditure in the medium-long term, to reconstruct expenditure in the medium-long past. It is possible to compare the effective expenditure with the reconstructed one. The effective expenditure is of course influenced by policy...