Let's take a market force like peak oil. When oil is <$5.00/gal then using a backhoe to dig ditches is the obvious choice over hiring ditch diggers.
When oil is $50.00/gal then you might think twice about using a backhoe to dig ditches, and instead hire a bunch of ditch diggers for minimum wage.
Let's take a market force like peak oil. When oil is <$5.00/gal then using a backhoe to dig ditches is the obvious choice over hiring ditch diggers.
When oil is $50.00/gal then you might think twice about using a backhoe to dig ditches, and instead hire a bunch of ditch diggers for minimum wage.