The below mentioned article provides a short note on ridge lines. This will also help you to draw the diagram of ridge lines. The marginal product of a particular factor may be negative if the quantity used is too large. For example, if too much labour is used there may be congestion and the efficiency of all the labourers may [...]
The below mentioned article provides a note on super-multiplier. The term 'super-multiplier' was first coined by J.R. Hicks in his business cycle theory. The object was to show the relationship between change in induced investment and the corresponding change in income. To be more specific, it indicates the ratio between the two changes, i.e., in investment and in equilibrium output. [...]
The below mentioned article provides a study note on the cost function. Economies and Diseconomies of Scale: The behavior of long run average total cost to the changes in scale [by increasing all inputs to raise the level of output of the firm] can be studied by estimating the economies and dis-economies of scale. The economies of scale in total [...]