In marginal product analysis, if the total product of an input increases as more units of that input are used, what does this indicate about the marginal product of that input?

In marginal product analysis, when the total product of an input increases as more units are added, it means that the marginal product is also increasing or at least positive. The marginal product is the additional output generated by using one more unit of that input. For example, if a farmer adds more workers to a field and the total crop yield goes up, it shows that each new worker is contributing positively to the harvest. This situation indicates that the input is being used efficiently, as each additional unit is helping to create more output. However, after a certain point, the marginal product may start to decrease due to overcrowding or limited resources, so it's important to monitor how adding more units affects the overall production.