This paper proposes the C(α)-type test in the GMM framework to test the possible presence of spatial correlation through the spatial lag in the spatial autoregressive (SAR) model. This test statistics is especially useful for the SAR model with disturbances under unknown heteroskedasticity. We...

The concept of genuine saving has in recent years become widely accepted as a dynamic welfare indicator, which first appeared in Weitzman (Q. J. Econ. 99:1–13, <CitationRef CitationID="CR18">1976</CitationRef>) and then formalized by Pearce and Atkinson (Ecol. Econ. 8:103–108, <CitationRef CitationID="CR12">1993</CitationRef>). This paper attempts to generalize this concept in a...</citationref></citationref>

We apply a hedonic house price analysis to value connection to the piped water network in Southwest Sri Lanka based on a household survey that was conducted in 2003-04. We find that the willingness-to-pay for a piped water connection is on average about 5 percent of monthly household...