Eth is $400 on Coinbase, Bitcoin is $12000 on Coinbase
Print 1,000,000 Tether
Buy $1,000,000 of Eth on an exchange that supports Tether
Sell $1,000,000 of Eth on Coinbase
Buy $900,000 (arbitrary post-sale amount from selling Eth) of Bitcoin on Coinbase
Another scenario:
Bitcoin is $12000 on Coinbase
Bitcoin is $12000 on another exchange that supports Tether
Print 1,000,000 Tether
Buy $1,000,000 of Bitcoin on the exchange that supports Tether
Bitcoin is now $12050 on another exchange
Coinbase price of BTC rises as arbitrage bots and manual traders purchase cheaper Bitcoin on Coinbase and sell it for profit on the other exchange until prices equalize
I still don't see that artificially inflating coinbase bitcoin. plus only bitfinance would be able to print/create tether. also, there's no evidence that companies what you claim they could do.
>The explanation is clear, but I just don't see it as being particularly convincing.
Why not?
>Sure, I didn't ask for evidence. Now, I am. Where's your evidence?
You need to specify what exactly you want evidence for. Then you need to google it, because that's what I'm going to do, assuming you want evidence of something like arbitrage.
It does make sense. The price of BTC in USD is roughly the same on every exchange. If some exchanges allow USD and USDT interchangeably, the BTC price can be driven up by trades that are conducted in USDT. The price on Coinbase will adapt to that.
Individuals and bots will take advantage of the price discrepancies between exchanges by purchasing BTC on the cheaper exchange, sending the BTC to the more expensive exchange and selling it. As long as its possible to do this different exchanges normally stay within a few % of each other.