1. The Theory of production
Chapter 5 Section 2

2. The Theory of Production
What are the four Factors of Production?
Land
Labor
Capital
Entrepreneurship
The Theory of Production = the relationship between the factors of production (inputs) and the output of goods and services. It examines how output changes when inputs change.

3. The Theory of Production Con’t
The short run = short period of time during which producers can change variable (change-able) inputs. Most often, LABOR is the input producers change in the short run.
The long run = longer period of time, where producers can adjust all inputs, like land, capital and labor.

4. Law of Variable Proportions
The law of variable proportions states that in the short run, output (what you make) will change as one input (like labor) is varied while the others are held constant.
In our lemonade example water stayed the same and we change the input of lemonade powder. The book discusses the addition of chili powder to chili.
How can the input of one resource change the final product?

5. The Production Function
Production Schedule / Function = Graphs or charts which illustrates INPUT and OUTPUT, see p112, Figures 5.4
Total Product = The total amount of goods or services produced by the business (Examples: Number of donuts made by Donut Connection)
Marginal Product = The extra output generated by adding one more unit of variable input.
Example: the number of additional haircuts performed by adding one more stylist

6. Three Stages of Production
Stage I – Increasing Returns = Adding one more input increases production and increases the total output. In this stage, marginal product is increasing.
Stage II – Diminishing Returns = Adding one more input still continues to make output greater, but the increase becomes smaller and smaller, so the benefit is not as much as in Stage 1.
Stage III – Negative returns = Adding one more input makes marginal product decrease; there is no added benefit .

7. Total Product (Output)
Workers
(Input)
Total Product (Output)
Marginal Product (what you get for each additional worker)
Stage of Production 3 75
Stage 1 4
112
112 – 75 = 37
Increasing Returns 5
150
150 – 112 = 38 6
180
180 – 150 = 30
Stage II 7
203
203 – 180 = 23
Diminishing Returns 8
216
216 – 203 = 13 9
207
207 – 217 = -9
Stage III 10
190
190 – 207 = -17
Negative Returns