Read the first paragraph of "the effectiveness
of capital." what do you think productive means?

Productive means having been able to gain in large amounts.

Explanation: In the first paragraph of “The Effectiveness of Capital” the productive means having been able to produce in a huge quantity or large numbers. Here being able to gain profits in a large amount is considered productive.

Producing any kind of goods in large numbers is productivity. The productivity of any good depends upon many factors. Like a productive worker has a lot of capacity to do a lot of work and hence he is able to give productive results in the end. With a great number of profits.

the answer is i don't know