In a federation featuring decentralized leadership, regional governments compete by setting capital taxes in anticipation of the central government's fiscal-equalization and income-redistribution policies. As a benchmark, it is first demonstrated that the constrained socially optimal allocation...

In a federation with decentralized leadership, many regional governments provide multiple types of public goods and the center implements interregional income transfers. The symmetric perfect equilibrium under unlimited decentralized leadership is inefficient because regional public goods are...

Numerous non-profit organizations that contribute to collective goods also provide prestige to their members. Some of these institutions function as prestige clubs, with prestige levels and member contributions working as club goods and membership fees, respectively. We investigate the...

The Paris Agreement builds on Intended Nationally Determined Contributions (INDCs) submitted by most participating nations. The INDCs vary across nations, since national circumstances differ, including national incomes and damages. The INDCs follow a bottom-up approach, whereby nations submit...

We examine the formation of multilateral, hub-and-spoke and bilateral international R&D strategic alliances (overlapping climate clubs) to reduce CO2 emissions. R&D provision in clubs produces two types of positive externalities: a global public good (i.e., reduction of CO2 emissions) and...

For a large global economy, containing at least 195 nations, with normal goods, and an unequal world income distribution, we consider the endogenous formation and stability of an international environmental agreement (IEA) under nationally determined contributions (NDCs). Nations share green R&D...

This paper studies the evolution of city population and the land use policy in China. We show that the population distribution of cities in China tends to cluster around 2-8 million people, and the distribution has become more clustered in recent years. Using a general equilibrium urban model,...

We study the effects of environmental policy commitments in a futuristic world in which solar radiation management (SRM) can be utilized to reduce climate change damages. Carbon and sulfur dioxide emissions (correlated pollutants) can be reduced through tradable permits. We show that if both...

We examine the formation of hub-and-spoke and multilateral green technology international agreements. Green R&D provision produces two types of positive externalities, a global public good (i.e., reduction of carbon dioxide emissions) and spillovers in technology agreements. We utilize the...

The Perfectly Coalition-Proof Nash equilibrium (PCPN) concept is extended to allow for the emergence of overlapping coalitions in equilibrium. We apply the extended concept to study the efficiency and stability properties of environmental agreements to control emissions of correlated continental...