Bluetick1010

5) Both pages are referring to different points. Highlight the "short run variables" versus "shift in the short run" phrases. As I alluded to labor in my answer for question 4 above, you can hire and fire consultants as per your production needs "on a short run".

Imagine the "tele-conferencing" technology allowing executives to conduct interactive business meetings. Paying for a $150 a month high-speed broadband connection will cut down on air travel costs of lets say $1,500 a month. Thus radical technologies help shift the cost curves down.

Hope this helps.