Author Archives: Morten Siersted

Morten founded F1F9 in 1999. At F1F9 he has helped create a uniquely transparent, efficient, maintainable, and comprehensive spreadsheet modelling methodology, now known as the FAST Standard. In 2005, he set up the world's first offshore modelling team in New Delhi, now one of the largest and most competitive global spreadsheet modelling resources. He has played a key role in developing the FAST Standard, including setting up the FAST Standard Organisation in 2011.

How to Model Balances in Excel

There are two basic types of line item in financial models – flows and balances. Balances are amounts at a point in time. Balances can be financial or non financial. Every balance has similar properties. This blog explains what those properties are, and gives a standard model component that can be used for all balances. […]

Standardised Modelling – Behavioural change is always hard

“If you want to make enemies, try to change something” Woodrow Wilson Despite what we modelling geeks might like to think, people are both rational and emotional. Which makes standardised modelling practices difficult to implement. Our ebook ‘How to Standardise Modelling’ helps modellers understand some of these challenges Psychologist Jonathan Haidt likens our emotional side […]

Use Excel – and be confident that you are using it well

It’s always interesting to pass the time with a fellow traveller on a long-haul flight. In this instance, I was on a regular trip to New Delhi to visit F1F9’s head office. My neighbour was the head of internal audit for a FTSE 100 company. We talked about Excel, of course, and how a business […]