In persuasion problems where the receiver's action is one-dimensional and his utility is single-peaked, optimal signals are characterized by duality, based on a first-order approach to the receiver's problem. A signal is optimal if and only if the induced joint distribution over states and...

This paper studies potentially relevant factors affecting changes in the number of self-employed in Korea during the period of 1986-2018. The number of self-employed had increased steadily until 2002 but started to decrease around that time and had continued to decline. The increasing trend in...

We reexamine the existence of stable solutions in a class of three-sided matching problems previously studied by Zhang and Zhong (2021). The sets of participants are U, V, and W. Agents in U have strict preferences defined on V, agents in V have strict preferences defined on W, and agents in W...

I propose a new search-and-matching model in which wage rigidity and volatile unemployment endogenously arise. The Diamond-Mortensen-Pissarides model is generalized by incorporating job-ladder and vacancy-chain effects arising from on-the-job search and replacement hiring into a long-lived jobs...

We study many-to-one matching problems between institutions and individuals where an institution can possibly be matched to more than one individual. The matching market contains some couples, who view pairs of jobs as complements. Institutions’ preferences over sets of individuals are assumed...

This paper examines the influence of educational mismatch on wages according to workers' region of birth, taking advantage of our access to rich matched employer-employee data for the Belgian private sector for the period 1999-2010. Using a fine-grained approach to measuring educational mismatch...

This research investigates the impact of import exposure on education-occupation mismatch. I use an input-output table to construct a measure of import exposure that accounts for both direct and indirect trade shocks. Findings show that increased import exposure leads to a rise in...

Information quality affects matching and marital outcomes. We show in a simple two-dimensional matching model that a noisier cue for one trait leads to a shift in sorting tradeoff toward the other, lowers average welfare but the impact is asymmetric. To test the predictions, we explore the...

We investigate an online edge-weighted bipartite matching problem with general capacity constraints. In this problem, the resources are offline and non-replenishable with different capacities. Demands arrive online and each requests a certain amount of resources. The goal is to maximize the...

Exploiting results from the literature on non-parametric identification, we make three methodological contributions to the empirical literature estimating the matching function, commonly used to map unemployment and vacancies into hires. First, we show how to non-parametrically identify the...