Chris Game said:
I think the difficulty is in getting some picture that applies to
life as lived then; was land for instance less valuable then as it
was a less productive asset, or is it relatively less valuable now
because we don't need so much of it?
You can start from the fact that hardly anything we can buy now even
existed then, and a lot of things that we now buy wouldn't have been bought
with money, e.g. a lot of people kept animals, made their own food and
furniture etc, and bartered for other things. Anything which needed to be
transported any distance cost a lot more, and exotic things like spices were
extremely expensive.
You also have to ask what your basic normalisation is going to be. It used
to take pretty much full time labour by the majority of the population to grow
enough food, whereas now agriculture is something like 4% of GDP and would be
quite a bit lower if we had a free market. With mechanised farms the labour
cost of growing wheat, say, is tiny. If you want comparability in those terms
you'd need to look at something like hand-made furniture (although even there
people use power tools). There's also the question of quality, I doubt that
people now would pay anything at all for C18 peasant-grade food.
And what were housing rents in the 18thC.? I suppose literature might
give a clue...?
ISTR Jane Austen's books have comments about incomes, although for the
wealthier end of society.