The role of unions and environmental agencies can be changed, though not fast enough to have an impact on the 2013 or 2014 economy.

FORBES: Ignore the Election to Forecast the Economy

Worry only about the things that are in your control , the things that can be influenced and changed by your actions, not about the things that are beyond your capacity to direct or alter.

FORBES: The Ten Golden Rules on Living the Good Life

We sorely lack lending, and banks will not lend if they fear that the loan terms can be arbitrarily changed.

FORBES: The Jobs Speech Obama Should Give, But Won't

These indicators, although not perfect, are adjusted for population composition, and can only be changed by changes in actual behavior.

FORBES: Are Russia's Demographic Improvements A "Myth?"

It can survive whether or not the car is run regularly, and would need to be changed out every few months.

FORBES: 30 Under 30: Energy

This is not something that can be achieved overnight, but organisations and, perhaps, an entire sector can be changed.

FORBES: Banksters: The Scandals Continue