Instead of a big brother world government which means trickle down economics and trickle down decision making, we need a trickle up approach; central world public servant, that performs the will of the people.
The Political Left dislikes trickle down economics. Ironically, this is how the US and most other government works. All the taxes are collected and brought to the top. Then the people at the top, add debt to this, and then trickle it all down, based on how they make the most campaign donations. Centralized power makes leaders think the budget is their own agenda slush fund, regardless of the will of the people.
I like the idea of a trickle up approach, where all the tax payers decide via a Trickle Up Democracy. We have internet and social media to allow individual tax payers, in the Democracy, to interact and agree on things such as a balance budget. This will of the people is trickled up and assigned as a task to the public servants who do our bidding. Why trust morons, to trickle down, who cannot even spend within our means?
The Democrats has a Socialist vision of a Big Bother World Government. I prefer a world wide Democracy where leaders can be hired and fired by the people for incompetence. Now we elect people based on personality and not necessarily competence. With Trickle up we will want to recruit the most competent. There is a saying in the Bible,
Matthew 20:27 , whoever wants to become great among you must be your servant
Here is a simple test run we can conduct to see how this works, address bottlenecks and fine tuned before prime time. At tax time, all tax payers, both individual and corporate will get two pie charts along with their tax forms. One pie chart will be the current national budget broken down into some detail. The second is left blank. The object of this test is to fill in the blank pie chart with your share of the tax burden. You as a tax payer can assign your tax share to whatever budget elements you wish, using the current budget as a template to understand current priorities. If you are going to pay $1000 in taxes you spread that over the pie chart based on your priorities.
All these pie charts are then sent back to the IRS and added together. This is then sent to Congress as a balanced budget; taxes=expenditures, Their job to get it done with the money and proportions we trickle up. The tax payers would have to OK, any more debt, since all decisions of money has to trickle up. You will need the best people to make this work, since throwing money at problems will not be acceptable.
I would even allow for bonuses to those great servant leaders who save money and innovate better solutions; trickle up investments. I would even give school children of all ages each a $1, from their school budget, so they can fill in their own pie charts; develop forward thinking civic skills. Parent can even give their spouse and children some of the leverage of their tax burden; for couples and families. It could done at the IRS web site so it is easier to compile and present to the people for final approval, and then sent forward.