How is the Price of Bitcoin Determined? – Prajwol Gyawali

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Supply and Demand in Bitcoin

The supply of bitcoins is the supply of Bitcoins that are in circulation. Currently, of course there’s a fixed number of Bitcoins in circulation. At the time of this writing it’s about 18.5 million. And the rules of Bitcoin, as they currently stand, say that this number will slowly go up and hit a limit of 21 million eventually.

Let’s now look at demand. There are really two main sources of demand for bitcoins:
1. Demand for mediating fiat-currency transactions
2. Demand for investment

First, let’s look at mediating fiat-currency transactions. Here is the scenario. Imagine that Alice wants to buy something from Bob or wants to pay some money to Bob. And Alice and Bob want to transfer, let’s say, a certain number of dollars. But they find it convenient to use Bitcoin to do this transfer. Perhaps they’re at a distance, Alice wants to be able email the money to Bob. Perhaps they like the fact that they can have very low (or no) transaction fees in Bitcoin; certainly, lower than some other service.

So, Alice buys Bitcoins for dollars. Alice then sends those Bitcoins to Bob as a Bitcoin transaction. Once that transaction is confirmed to Bob’s satisfaction, Bob will sell those Bitcoins for dollars and get the dollars back. So, Alice starts by putting in dollars, Bob ends by getting out dollars.

But the key thing to understand is that while mediating this transaction some Bitcoins have to be taken out of circulation and they’re devoted to serving this transaction. This creates a demand for those Bitcoins. If there are a lot of people who want to mediate transactions like this, that will generate demand for bitcoins. So, that’s the first source of demand.

The second source of demand is that bitcoin is sometimes demanded as an investment. That is somebody wants to buy bitcoins and hold them in the hope that the price of bitcoins will go up in the future and that they’ll be able to sell them. So, to the extent that people are buying and holding those bitcoins, those bitcoins are out of circulation.

Now we can try building a simple model to predict the price of Bitcoin based on the effect of transaction mediation demand. Let us assume:

T is the total transaction value that’s going to be mediated via Bitcoins by everyone who’s participating in the market. And that’s going to be measured in dollars per second.

D is the duration of time that Bitcoins need to be held out of circulations in order to mediate a transaction. That’s the time from when the payer buys the bitcoins to when the receiver is able to sell them back into the market, and we’ll measure that in seconds.

S is the supply of Bitcoins that are available for this purchase.

P is the price of Bitcoin per dollar measured in BTC/USD. Therefore, 1 USD = ( 1 / P ) BTC.
As of this writing P = 0.00011, i.e. 1 BTC= 9,198.83 USD.

Now we can do some calculations to determine the equilibrium price by equating demand and supply.

Bitcoins needed to mediate transaction per second = Bitcoins available to mediate transactions per second

Total transaction Value (T) / Price (P) = Supply (S) / Duration needed for transaction (D)

Therefore, Price (P) = (T * D ) / S

Now if you think about it, D the duration does not change. Similarly, the total supply will max out at 21 million BTC, making it constant. Therefore, the price is going to be proportional to the demand for transaction mediation as measured in dollars. So, if demand for transaction mediation in dollars doubles, then the price of Bitcoins should double. In fact, we could graph the price of Bitcoin against some estimate of the demand for transaction mediation and see if they match up. And when we do this, they tend to match up pretty well.

Bitcoin Price vs Transaction Amount to Active Addresses Ratio (TAAR). Source: coinmetrics.io

This is not a full model of the market by any means. In order to have a full model, we need to consider the activities of investors. We need to bear in mind that investors will demand bitcoins when they believe that the price will be higher in the future. So, we need to think about investors’ expectations and investors’ expectations, of course, have something to do with what is the expected total transaction value demand in the future.

Ultimately, what determines the value of pizza is exactly what determines the price of Bitcoin; whether people are willing to transact using it. Predicting the future price of Bitcoin is impossible. But we can sure ponder upon if the Bitcoin price would continue to rise steeply enough for users to remain willing to pay ever-higher transaction fees? Or will there eventually be a “death spiral” triggered by falling prices as users leave the system in mass, followed by miners giving up as collapsing transaction volumes force fees down to zero?

Free Bitcoins: FreeBitcoin | BonusBitcoin

Coins Kaufen: Bitcoin.deAnycoinDirektCoinbaseCoinMama (mit Kreditkarte)Paxfull

Handelsplätze / Börsen: Bitcoin.de | KuCoinBinanceBitMexBitpandaeToro

Lending / Zinsen erhalten: Celsius NetworkCoinlend (Bot)

Cloud Mining: HashflareGenesis MiningIQ Mining

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