The degree of competition and level of price transmission in food markets have important effects on the welfare level of consumers and producers. Thus, substantial attention has been paid to the analysis of price transmission in food markets. Traditionally, price transmission analyses have...

We investigate the possibility of exploiting partial correlation graphs for identifying interpretable latent variables underlying a multivariate time series. It is shown how the collapsibility and separation properties of partial correlation graphs can be used to understand the relation between...

In this paper we study the zero frequency spectral properties of fractionally cointegrated long memory processes and introduce a new frequency domain principal components estimator of the cointegration space and the factor loading matrix for the long memory factors. We find that for fractionally...