Why might a monopoly or a trust in a certain industry be bad for both customers and workers?

Skilled workers in such an industry have to work for the trust/monopoly or not work in their skill set. This gives the employer much leverage in pay/benefit negotiations.

Since consumers have no choice but to buy from the trust/monopoly they have to pay (usually) higher prices than they would if there were competition between businesses owned by different people.

Without competition there might be little incentive to improve product quality and to develop new products.

(202 bc - 220 ad) dynasty started by lui bang; a great and long-lasting rule, it discarded the harsh policies of the qin dynasty and adopted confucian principles; han rulers chose officials who passed the civil service exams rather than birth; it was a time of prosperity

what was the significance of the plessy vs ferguson ruling and jim crow laws

answer the impact. plessy v. ferguson allowed 'separate but equal, also known as segregation, to become law in the united states