Topic: Estate taxes concentrate wealth
The basic argument in favor of estate/inheritance taxes is that it recycles wealth. That wealth is then reinvested in to new projects developed by new and ambitious individuals. This keeps the wealth circulating and minimizes the presence of a useless aristocracy.
This argument sounds great at the surface, but in truth it concentrates wealth. In America, anyway, the elite do not have to worry about the estate taxes because they can afford the accounting teams to avoid paying it. The most they are going to pay is 10%. And by elite, I mean people who own $100 million in assets or more.
On the other hand, a person (family most likely) that owns $5 million in assets, such as a farm or small business, will be ruined by the estate taxes. To come up with $2.5 million means they must sell their assets, and most likely means losing their business.
And even if the elite actually sold half their assets to pay the estate taxes, they would most likely not be personally ruined and more easily able to recover the money lost. Losing $50 million and having $50 million left leaves you in a far better position to recover your wealth than does losing $2.5 million and having $2.5 million left, especially if there are several heirs.
Whether the elite pay the estate taxes or not, which they manage to get at a substantially reduced rate, means that the lower rich are hurt badly and the elite are only marginally harmed. Wealth effectively gets concentrated in the hands of the few. The very class that could provide competition to the elite is deprived of the opportunity to do so.
Now, the argument could be made that there should be more tax brackets. For example, a person with $5 million in assets would pay less than someone with $100 million in assets. This idea is still foolish, because the economy would be negatively impacted by members of the elite suddenly liquidizing those assets. Imagine an industrialist suddenly liquidizing $25 billion to pay estate taxes. That would have a bad bad ripple effect in the economy.
Since estate and inheritance taxes are only able to concentrate wealth, rather than recycle it, I say it is best not to have such a tax.