Finance Spyder
Follow the evidence, not the tip

Behaviour

The gap between fund returns and investor returns, and why.

Business person holding coffee and newspaper in office with charts.

Behaviour

Knowing when to do nothing

Action bias produces most of the damage in retail investing, and inaction is an active choice rather than an absence of one.

Clara Mensah··3 min read

Behaviour

Automating your investing

Every decision removed is a decision that cannot be made badly, and the evidence on discretion is not encouraging.

Clara Mensah··3 min read

Behaviour

Making decisions with a partner

Two people with different risk tolerances need a shared plan, and one person holding all the knowledge is a vulnerability.

Clara Mensah··3 min read

Behaviour

Regret, comparison and other people

Investment decisions are made in a social context, and comparison drives more behaviour than analysis does.

Clara Mensah··3 min read

Behaviour

Financial media and how to read it

It is produced continuously for attention, which makes it a poor input into decisions with thirty-year horizons.

Clara Mensah··3 min read

Behaviour

Herding, bubbles and manias

The pattern repeats with different assets, and recognising it in progress is considerably harder than recognising it afterwards.

Clara Mensah··3 min read

Behaviour

Investment scams and how they work

The patterns are consistent, the losses are large, and a two-minute check prevents most of them.

Clara Mensah··3 min read

Behaviour

Chasing performance

Money flows towards recent winners and away from recent losers, and both directions cost investors money.

Clara Mensah··3 min read

Behaviour

Why forecasts do not help

The record of market and economic forecasting is poor, and acting on forecasts is worse than ignoring them.

Clara Mensah··3 min read

Behaviour

The behaviour gap

Investors persistently earn less than the funds they hold, and the difference is entirely a matter of timing decisions.

Clara Mensah··3 min read