The four types of stablecoins: A comparative analysis

TL;DR

This paper classifies stablecoins into four types based on collateral management, analyzes their stability under various conditions, and highlights the importance of collateral source and management for ensuring stability and reducing risks.

Contribution

It provides a novel classification of stablecoins and uses agent-based simulations to compare their stability and risks, offering insights for regulators and investors.

Findings

Different stablecoin types exhibit distinct stability profiles.

Collateral source and management significantly impact stablecoin stability.

Simulation results highlight potential instabilities and tradeoffs.

Abstract

Stablecoins have gained significant popularity recently, with their market cap rising to over $180 billion. However, recent events have raised concerns about their stability. In this paper, we classify stablecoins into four types based on the source and management of collateral and investigate the stability of each type under different conditions. We highlight each type's potential instabilities and underlying tradeoffs using agent-based simulations. The results emphasize the importance of carefully evaluating the origin of a stablecoin's collateral and its collateral management mechanism to ensure stability and minimize risks. Enhanced understanding of stablecoins should be informative to regulators, policymakers, and investors alike.