Historically, development of a new technology often:
1. results in immediate increases in productivity.
2. leads to increases in productivity only once firms learn how to use it.
3. requires a complementary increase in physical and human capital.
4. has had no impact on changes in productivity.

2. Leads to increases in productivity only once firms learn how to use it.

Explanation:

Technology is an all new or improved way of doing things to enhance effectiveness and efficiency that will lead to increase output. But the new technologies can not improve a business output if they don't grow with the trend of new technologies by updating their knowledge regularly

2. leads to increases in productivity only once firms learn how to use it.

Explanation:

The development of a new technology creates new products, processes and services through innovation.

The new technology improves safety, reduce energy, increase water usage efficiency, lower overall production cost, enhance product qualities and increase in company's ability to recover value from its activities.

All these cannot be achieved if the new technology is not well studied thereby giving room for its optimal usage.