It is well known that the conventional CUSUM test suffers from low power and large detection delay. We therefore propose two alternative detector statistics. The backward CUSUM detector sequentially cumulates the recursive residuals in reverse chronological order, whereas the stacked backward...

The aim of the study is to compare the methodology of spatial model building of two very influential economists, Thünen and Krugman. Thünen is a representative nineteen century economist and Krugman represents the method of contemporary neoclassical mainstream economics. Thünen is mostly...

Against the background of the scarcity of fossil resources and the reduction of the availability of agricultural land, the emergence of climate change and the growth of the world population, it has become necessary to design sustainable and efficient strategies from the point of view of resource...

The fixed-b asymptotic framework provides refinements in the use of heteroskedasticity and autocorrelation consistent variance estimators. We show however that the fixed-b limiting distributions of t-statistics are not pivotal when the variance of the underlying data generating process changes...

The aim of this paper is to analyze the intra-urban spatial distribution of employment in the agglomeration of Ile-de-France in 1978 and 1997. In that purpose, exploratory spatial data analysis is used in order to identify employment centers and a sectoral analysis of the CBD and the subcenters...

Since Florida (2002b) revealed the importance of creative skills on economic growth, the notion of "creative class" has been deepened to analyze factors that shape the geography of talent of creative people. In spite of some strong correlations between artistic or cultural vibrancy, Third...

Many regression models are used to provide some recommendations in private sectors or government public policy. Data are usually obtained from several districts which may varies from one to the others. Assuming there is no significant variation among local data, a single global model may provide...

The term urban sprawl is often used to describe apparent inefficiencies of spatial development, including disproportionate growth of urban areas and excessive leapfrog development. In Switzerland, where open space is a scare resource, sprawl takes place all over the country. It goes at the...

This paper argues that typical applications of panel unit root tests should take possible nonstationarity in the volatility process of the innovations of the panel time series into account. Nonstationarity volatility arises for instance when there are structural breaks in the innovation...