Added DEX arbitrage paper.

index.html

@@ -94,6 +94,14 @@ Portfolio Selection; Market Frictions; FinTech; Market Microstructure; Stochasti
 <p>
 <h3>Selected Publications</h3>
 <ul style="list-style-type:square">
+    <li>Arbitraging on Decentralized Exchanges (with <a href="https://sites.google.com/site/xuedonghepage/home" target="_blank">Xuedong He</a> and Yutian Zhou).<br>
+    Working Paper. [<a href="" onclick="toggleAbstract('abs_arbDEX');return false">Abstract</a>]<br>
+        <div style="display:none" id="abs_arbDEX">
+        <hr>
+        <i>Decentralized exchanges (DEXs) are alternative venues to centralized exchanges to trade cryptocurrencies (CEXs) and have become increasingly popular. An arbitrage opportunity arises when the exchange rate of two cryptocurrencies in a DEX differs from that in a CEX. Arbitrageurs can then trade on the DEX and CEX to make a profit. Trading on the DEX incurs a gas fee, which determines the priority of the trade being executed. We study a gas-fee competition game between two arbitrageurs who maximize their expected profit from trading. We derive the unique symmetric mixed Nash equilibrium and find that (i) the arbitrageurs may choose not to trade when the arbitrage opportunity is small; (ii) the probability of the arbitrageurs choosing a higher gas fee is lower; (iii) the arbitrageurs pay a higher gas fee and trade more when the arbitrage opportunity becomes larger and when liquidity becomes higher. The above findings are consistent with our empirical study. </i>
+        </div>
+    </li><br>
+
     <li>Portfolio Selection with Time-Varying Taxation (with Xianhao Zhu).<br>
     Working Paper. [<a href="" onclick="toggleAbstract('abs_TaxTimeVarying');return false">Abstract</a>]<br>
         <div style="display:none" id="abs_TaxTimeVarying">