The field of market equilibria is witnessing significant developments, with a focus on fairness and efficiency. Researchers are exploring new models and algorithms to promote equitable allocations of resources, addressing issues such as inequality and unfair distribution. Notably, innovative approaches are being proposed to handle complex scenarios, including non-linear utility functions and dissimilar preferences. These advancements have the potential to impact various applications, from resource allocation to matching problems. Some noteworthy papers in this regard include:

• Market Equilibria With Buying Rights, which introduces a novel framework for regulating market equilibria through buying rights.
• Optimal Allocations under Strongly Pigou-Dalton Criteria, which presents efficient algorithms for finding stable allocations.
• Fisher Meets Lindahl, which proposes a unified duality framework for market equilibria, providing new insights into welfare properties and market dynamics.