Market lab

Change an assumption.
See what follows.

Nine interactive experiments. Each isolates a mechanism, shows the arithmetic and explains what the simplification leaves out.

See how unequal returns move an allocation.

A falling inflation rate need not mean falling prices.

Quantity changes the average price in a limited order book.

Look at it another way.

The same release can carry different information depending on what was expected.

A new observation can arrive alongside a rewritten picture of the previous period.

Turn an exchange rate around. The units reverse; the percentage change does not simply change sign.

Move a component weight and see how a headline can hide very different price changes.

Put an interest return and an exchange-rate change into the same base-currency calculation.

Start with an observed move and examine several possible explanations, including evidence that could challenge them.