Methodology

Here is the way we prepare material, together with a plain statement of what it does not give you.

How topics and data are chosen

We take on questions that keep coming back and work through them on data with the source and the period stated.

Limits of the approach

The texts explain how things generally work but do not account for particular circumstances. A decision with consequences needs a consultation with a qualified specialist.

How often material is updated

We come back to a text when the figures or rules it describes go out of date. Cosmetic edits do not count as an update.

Editorial policy

Material on this site is prepared and checked by Elliot Marsh.