What kind of people are capable of market manipulation?
To the best of my understanding, market manipulation can take place in a wide range of markets, from commodity, Forex to cryptocurrencies. It is not limited to any country or market type. However, the impact of market manipulation can vary widely depending on the specific context and regulatory environment in a particular location. It is generally perceived that individuals or entities with substantial financial resources, can leverage their financial clout to manipulate prices in their favor.
It's true that market manipulation is not a respecter of a country, it can happen anywhere but the help of regulation is checking the excesses on this and heavy sanctions are being meted on those who are caught in such illegal practices. This is often done by those who have the big money, they are mostly big banks and financial institutions in the traditional market, but regulators are careful and strict enough to monitor their activities to discourage such practices. What helps further in manipulating the market is thin market liquidity, when the liquidity is low, they can move in money and do what they have to do.
However, this is getting much worse in the cryptocurrency market. These guys are careful enough to avoid the top-rated coins but focus on the shitcoins to their advantage. They pump and dump selected coins at will and continue to make their money.