Trickle-down economics assumes investors, savers, and company owners are the real drivers of growth. It promises they’ll use any extra cash from tax cuts to expand businesses. Investors will buy more companies or stocks. Banks will increase lending. Owners will invest in their operations and hire workers. All of this expansion will trickle down to workers. They will spend their wages to drive demand and economic growth. Trickle-down theory is more specific. It says targeted tax cuts work better than general ones. It advocates cuts to corporations, capital gains, and savings taxes. It doesn't promote across-the-board tax cuts. Instead, the tax cuts go to the wealthy.
The problem is that what was true in the past is not necessarily true today, computers today can automate the work of hundreds of persons, so tax cuts could help a business to expand its operations but that does not necessarily means that money will be used to hire more people, this is why the class divide is getting larger, corporations are getting more and more efficient to the point that they can function with a fraction of the employees they needed a decade ago, so it is my opinion that tax cuts should be given to small business that cannot make use of that kind of technology and that instead need to hire people to perform the job, or if it is possible to give those tax cuts to corporations that gives some guarantees that they are going to generate a certain amount of jobs.