FCoin ( ) is a crypto exchange that began trading in May 2018. It is maybe best known in the US and Europe for , but it is well known in Asia, and especially China, for its innovative “ ” incentive program. https://www.fcoin.com crippling the Ethereum network Trans-Fee Mining The performance of FCoin’s “Trans-Fee Mining” was so sensational that almost every crypto exchange is now rushing to copy the incentive program. Indeed, within a few weeks after launching the program, FCoin’s 24-hour trading volume reached a whopping . To put that into perspective, the combined 24-hour trading volume on the top 10 exchanges is only around $6B. However, the surge did not last long. As reported on CoinMarketCap, FCoin’s 24-hour trading volume dropped to . $17B on June 26, 2018 $0.16B on August 12, 2018 FCoin’s 24-hour trading volume on June 26, 2018 What caused the rapid rise and fall of FCoin? The FCoin “Trans-Fee Mining” incentive program has been since the beginning, but the incentive program actually works and works quite well as demonstrated by the initial surge of daily trading volume. Even though the FCoin team made many missteps in trying to fix the problem after it started, the rapid fall is actually caused by fundamental flaws in its token economics design. The verdict is not fully out there yet, but it appears that controversial FCoin will be killed by its bad token economics design! Token Economics is a new tool that has not existed before in the internet or mobile spaces, but it plays a critical role in any token project. If applied well, token economics helps a project create a new business structure and disrupt existing incumbents. If not, a project will crash and burn. By learning from the mistakes that FCoin made, other projects, especially those crypto exchanges trying to copy FCoin’s model to stay competitive, will have better token economics designs and can successfully transform many businesses into a new era. “Trans-Fee Mining”— A Great Incentive Design A good token economics design starts with incentive design since using token as incentive is the new and disrupting force. A good incentive design requires deep understanding of the project’s business. Based on my conversations with people from exchanges, the most important thing that an exchange cares about is the daily trading volume. This should not be a surprise given that exchanges make money from transaction fees and high volume also generates high liquidity. To increase trading volume, traders (buyers/sellers) should be incentivized. The easiest, and perhaps only, way to provide economic incentives to traders is by discounting the transaction fee. The founder of FCoin, Jian Zhang, is the ex-CTO of Huobi and a veteran in exchange business. It should not be a surprise that the FCoin team has insights from the crypto exchange business and designs the incentive accordingly. To incentivize traders, FCoin created a new innovative model: “Trans-Fee Mining”, which is described in FCoin white paper: FCoin’s Trans-Fee Mining incentive program What is the incentive here? The “Trans-Fee Mining” model creates a perception to traders that they are effectively paying $0 transaction fee. This incentive design is clearly effective, as seen from the huge trading volume surge in such a short period of time. Some argue that this provides wrong incentives in that traders come to FCoin not to do real trades but to mine FT tokens, but opponents of FCoin’s approach have forgotten that the goal is to increase daily trading volume and any trade will increase the trading volume. “If you provide incentives, users will come” is an underlying truth for crypto projects that has played out time after time. Different from the traditional school of marketing thought, token incentives in the crypto world are a customer acquisition tool in and of themselves. FCoin’s “Trans-Fee Mining” is not really new, but it proved again that the idea works well in the crypto space. 80% Revenue Distribution — FCoin’s Fundamental Token Design Flaw Once a project has a good incentive design, it also needs the right token monetary policy, which addresses token supply, token demand, token circulation, etc. This is critical because it will affect the token price and the token price will impact the effectiveness of the incentive program. In FCoin, the token supply is generated by the Trans-Fee Mining program. Everyday, new tokens are being minted into the market and cause token inflation. In theory, without token demand or if token demand is smaller than token supply, the token price will go down due to token inflation. The white paper does not describe native token demand from a utility point of view and the reality is that it is hard to create utility demand for an exchange business. Even if you can force utility demand such as requiring projects to buy tokens as escrow to get their token listed, the utility demand will still be much smaller than the “Trans-Fee Mining” token supply. FCoin does attempt to create incentives for token holders to hold FT tokens and hence to reduce token circulation. The incentive is that (e.g. trading fees paid by traders and collected by FCoin) will be distributed to FT holders as dividends. The logic here is that FT token holders want to to receive dividends and hence will NOT sell their tokens. By doing this, the token circulation will be reduced, potentially driving up the token price. 80% of FCoin platform revenue Unfortunately, this dividend approach is the fundamental flaw in FCoin’s token economics design. Instead of driving up the token price, it caused the FT token price to collapse. As shown in the chart below, the FT token price surged to about $1.26 within first two weeks after the “Trans-Fee Mining” program was launched and since then dropped to $0.08 in the last 2 months, about 95% from the peak. As the FT token price collapses, the incentive program “Trans-Fee Mining” which depends on FT token price appreciating over time, stops working as well and the trading volume drops quickly as a result. FCoin’s FT Token price history The Invisible Force — Why FCoin’s Token Price Dropped As FCoin saw, paying dividends won’t incentivize token holders to hold FT tokens. This is because paying dividends causes the token price to drop and creates a market perception that the token is losing value. As a result, token holders’ rational reaction is to rush to sell tokens and to sell as fast as possible, which will cause the token price to fall faster. This downward vicious cycle is driven by a market force that is invisible to most people. However, it is not really new and there is an economic theory behind it. In general, we can categorize all tokens into two types: currency-like token and asset-like token. Most of the time, the two types of token cannot be mixed during token economics design. The price of different types of token is driven by different rules. The price of currency-like tokens is driven by supply and demand. When the demand is larger than supply, the token price goes up; and when the demand is smaller than supply, the price goes down. The price of asset-like tokens is driven by the value of the underlying asset. For example, if the token represents a company’s assets, similar to a company’s stock, the price goes up when the company’s assets increases in value, and vice versa. Different from token supply and demand which sometimes are hard to understand and predict, a company’s assets are well understood and easy to calculate. Hence the intrinsic value and price of asset-like tokens can be easily calculated. Overtime, the market price of asset-like tokens will converge to its intrinsic price based on the underlying asset value. By paying dividends to FT token holders, FCoin makes the FT token an asset-like token or asset-backed security (ABS). The invisible force driving the price of ABS is well studied and understood in company stock, which is another ABS. From a corporate finance point of view, when a company is paying dividends, the company’s asset value will go down and hence its stock price will go down; and when a company issues more stock without changes in the company’s asset value (e.g., a stock split), the stock price will go down. In FCoin’s case, dividends are paid out via and new tokens are being minted into the network via ! Can you imagine the price curve of Apple stock and the market reaction if Apple does a dividend payout and stock split every day?! 80% revenue distribution Trans-Fee Mining EVERY DAY By combining these two forces, the FT token price should go down and go down fast. To illustrate the impact of these two forces on token price, let’s do a hypothetical simple modeling of FT token price based on the FCoin model. A hypothetical simple modeling of FT token price based on FCoin model The assumptions here are 1) the company has $10 in assets on day 0; 2) the company has 10 tokens in day 0; 3) every day the company generate $10 in revenue. As show in the table above, the price drops 75% in 3 days. Given that the “Trans-Fee Mining” is designed to incentivize more trading, let’s model a scenario of accelerating revenue by changing assumption 3) to the company generated revenue $10 on day 1, $20 on day 2, $30 on day 3. As shown in the table below, the price drops faster — 86% instead of 75% in 3 days. This is caused by faster token inflation due to higher revenue and lower token price. A hypothetical simple modeling of FT token price with accelerating revenue For asset-like tokens, when the market price is higher than the token price calculated based on intrinsic value of the underlying assets, the market will correct itself sooner or later and the token’s market price will eventually reach the token’s intrinsic price. Hence the collapse of the FT token price should be considered normal and is expected. In theory, the new FT token holders who acquire FT tokens via Trans-Fee Mining should not have the urgency to sell their tokens. This is because from a corporate finance point of view, dividends and stock splits don’t reduce the value of the stockholders. As shown in the table below, token holders of each day still hold the same value per token equaling the cost per token in the following days even after dividend payout and token inflation. Token holder value before and after dividend payout and token inflation However, the is more complicated than the simple example above. To make it simple to understand (not 100% accurate), basically Trans-Fee Mining program doubles the token inflation in the market for revenue distribution. This is an understandable design since FCoin also wants to create incentives for token holders of the 49% of “previously issued” tokens to hold tokens as well. Unfortunately, this design changes the economic value of existing token holders (including traders) and creates unexpected incentives for traders to sell tokens acquired via Trans-Fee Mining immediately. FCoin revenue distribution design and token unlocking schedule Token holder value under FCoin’s revenue distribution design As shown in the table above, the value per token for tokens held by traders dropped immediately after the dividend payouts. This is similar to the scenario where a company issues new stock to acquire an undervalued asset which will dilute the value of existing stockholders. In the crypto space, the basic assumption is that people are rational. Knowing that its FT tokens acquired via Trans-Fee Mining will drop in value and by less than the transaction fees they pay, rational traders will immediately sell the tokens before the price drop instead of holding the FT tokens. The FCoin revenue distribution design causes the price of FT token to drop and creates incentives for traders to sell immediately instead of holding FT tokens. Even though the price of FT token might be bumped up in the beginning and supported along way, the market force due to these two effects is so strong that it will crash the price support effort and collapse the token price. The market perception of collapsing token price will discourage new investors (speculators) and encourage existing token holders to sell more and faster, forcing the price to drop even further and faster. Once rational traders figure out the market price direction, and that they won’t get their full trading fee back if they cannot sell immediately, the incentive program does not work anymore and trading volume quickly dries up. Token Economics Design Can Make or Break a Promising Token Project Token Economics is a new tool that did not exist before in internet or mobile space and applied well, it will play a critical role in decentralizing many businesses and disrupting existing incumbents. But token economics design is really complex and counter-intuitive. A good token economics design requires not only deep knowledge of the target business domain, good understanding of incentive design, and strong analytical skills to create a network effect, but also profound grasp of the game theory, economic principles, finance theory, and monetary policy that are the invisible forces governing the market. The collapse of FCoin can be avoided with a different and better token economics design. By paying attention to incentives and gaining knowledge about monetary policy, token project founders can all contribute to improving the quality and success of crypto projects in the future.

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