Cause of declining trade sizes in successive rsyncsearcher iterations

Determine the underlying cause of the observed decline in the median trade size across successive iterations of the rsyncsearcher non-atomic arbitrage smart contracts operating on Ethereum decentralized exchanges, and clarify whether this decline reflects a strategic shift toward smaller, less contested arbitrage opportunities as hypothesized by the authors.

Background

The paper analyzes non-atomic arbitrage activity on Ethereum decentralized exchanges and profiles the behavior of major arbitrage searchers, including several labeled as rsyncsearcher. In examining trade-size distributions (Figure ref: fig:tradeSizebyBot), the authors observe distinct patterns for rsyncsearcher accounts and note a consistent decline in their median trade size across successive iterations.

While discussing this trend, the authors explicitly acknowledge uncertainty about its cause and conjecture that it may indicate a strategic shift toward smaller, less contested arbitrage opportunities, but they do not resolve the question. This leaves open the task of determining the drivers behind the change in trade-size behavior for rsyncsearcher iterations.

References

Further, we observe that with each iteration of the rsyncsearcher, the median trade size declines. While we cannot be sure what the cause of this is, it could be a sign that with time rsyncsearcher is turning towards smaller and likely less fought-after (as they are less valuable) non-atomic arbitrage transactions.

Non-Atomic Arbitrage in Decentralized Finance  (2401.01622 - Heimbach et al., 2024) in Section 6.1, Non-Atomic Arbitrage Trade Landscape