Stories tagged with "Benjamin Warr"

Implications of the Ayres Warr Model of Economic Production: An Introduction

This is a guest post by Ian Schindler, known on The Oil Drum as Schinzy. Ian teaches math at the University of Toulouse in France.

The Ayres Warr Model

Implications of the Ayres Warr Model of Economic Production: An Introduction

Schinzy

Many Oil Drum readers are familiar with the Ayres Warr model of economic production, as discussed in "Accounting for Growth: The Role of Physical Work" by Robert Ayres and Benjamin Warr. As a mathematician, with an interest in economics, I wrote a fairly mathematical paper, extending some of the work done by Ayres and Warr. My paper can be found at this link.

The purpose of this post is to give an overview of the paper I wrote, explained in more elementary terms. Some readers with a more mathematical bent may choose to read my original paper as well. For those readers unfamiliar with the Ayres Warr model, a short introductory piece can be found in point 5 of this post by Gail the Actuary.

An Overlooked Detail - Finite Resources Explain the Financial Crisis

Recently, two major actuarial organizations asked members to submit essays on the financial crisis. The only limitation was that the papers had to be very short--they should fit on two typewritten sheets of paper.

Since I have written in the past on the financial crisis, I took the opportunity to respond. This was my summary of the current financial situation, its connection to our limited resources, and what we need to do to solve the crisis. I never actually use the words "peak oil" and, in fact, the precise timing of peak oil is irrelevant. The issue is really the financial squeeze that occurs when resources starts to become expensive to deliver, and that doesn't really require peak oil.

Our World Is Finite

We all know the world isn’t flat. Any of us would be laughed out of the room if we built a model with a flat earth as one of its major assumptions.

We also know that the world isn’t infinite. There are a finite number of atoms in the earth and its atmosphere. The ability of our atmosphere to absorb pollutants is limited. The ability of our soil to withstand repeated mistreatment is limited. The amount of our non-renewable resources is limited.

Fossil fuels, especially oil, are a particular problem. Even though the amount of resources seems huge, the cost of extraction (in terms of fossil fuel resources, man-hours, and fresh water) increases greatly after we have extracted the easy-to-extract oil, natural gas, and even coal. Substitutes (such as ethanol and solar voltaic) are expensive in terms of fossil fuel use, man-hours, and fresh water. It is also difficult to ramp up quantities to the level needed to substitute for fossil fuels.