I am quite new to economics with only a fundamental understand of the topic and because of this I am struggling to answer (and understand the description for the answer) a question regarding the Cobb Douglas production function.
Problem: Under what conditions does a Cobb-Douglas production function (q=AL^(alpha)K^(beta)) exhibit decreasing, constant or increasing returns to scale?
Alongside this, can someone please breakdown for me how and why '(alpha) + (beta) > 1' would indicate increasing returns. All answers online and in the textbook have been out of my depth in terms of understanding.