The kooky housing supply filtering debate

People must relocate to fill the stock of homes. Filtering must happen. So what is the controversy about?

Filtering is a concept in housing analysis that describes the fact that people occupying new homes come from other homes. Sometimes these relocations are described as moving chains.

For an outsider, the attention to such a niche concept might seem a little strange. After all, where else do people come from to occupy new homes if not existing ones?

Yet t…