The Quality Ladder Model 

The following was implemented in Maple by Marcus Davidsson (2009) davidsson_marcus@hotmail.com

and is based up the work by Barro & Sala-i-Martin (2005) Economic Growth
 

1) Profits for a Research Firm Monopoly 

2) Percentage Growth Rate of Consumption 

3) Percentage Growth Rate of Goods Quality 

4) Probability of Research Success 

5) Consumption, Goods Quality and Output in the Equilibrium