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2019 ◽  
Author(s):  
◽  
Saroj Dhital

The dissertation presents three essays in applied macroeconomics and monetary theory. First essay explores the existence of global financial cycles and examines the relationship between financial and macroeconomic sectors at a global scale. I find that there exist significant cycles in financial variables and the contribution of the financial shocks on global macroeconomic sector is significant and varying over time. Second essay examines the role of decentralization on regional convergence using night-time satellite lights data as proxy for regional economic activities. I find that the decentralization hinders regional convergence in the sample of developing countries. Third essay analyzes active and passive fiscal and monetary policy regime in the presence of long and short-maturity government debt. I utilize the advances made in money search model to analyze the policy regimes. I find that while there are some similarities between the regime, there are also significant differences. I also find that the results using money-search model can be different than using a reduced form models.


2018 ◽  
pp. 1-23
Author(s):  
Tetsuya Saito

This paper considers whether the stability of Bitcoin in the market as a method of payment using a dual currency money-search model. In the model, there is traditional money and Bitcoin. The two currencies are classified by the storage cost and the probability that sellers accept particular money for payments. Agents are randomly matched for transactions. To consider substitution effect between monies, we allow new entries every period. In the beginning of each period, new entrants come into the matching process with a unit of money of their choice. A certain number of sellers also come into the same process to maintain the population share of sellers at a constant level. With appropriately chosen parameters, the author finds that there can be stable and unstable equilibria of the share of bitcoiners. In this case, a stable equilibrium is a success (bitcoiners take a large share) while the other (unstable) is a failure (bitcoiners take a marginal share or vanish). However, if the inflation rate of traditional money decreases, the successful equilibrium disappears to start approaching the failure even if Bitcoin is currently widely accepted. Furthermore, welfare comparisons suggest that an increase in the share of bitcoiners has a negative effect; hence, the benefit from reductions in the transaction costs must compensate for the welfare erosion if Bitcoin is accepted as a new kind of payment system. If the author is to succeed, the Bitcoin community or the public authorities need to be prepared for protecting the system from several illicit activities.


2015 ◽  
Vol 6 (2) ◽  
pp. 52-71 ◽  
Author(s):  
Tetsuya Saito

This paper considers whether the stability of Bitcoin in the market as a method of payment using a dual currency money-search model. In the model, there is traditional money and Bitcoin. The two currencies are classified by the storage cost and the probability that sellers accept particular money for payments. Agents are randomly matched for transactions. To consider substitution effect between monies, we allow new entries every period. In the beginning of each period, new entrants come into the matching process with a unit of money of their choice. A certain number of sellers also come into the same process to maintain the population share of sellers at a constant level. With appropriately chosen parameters, the author finds that there can be stable and unstable equilibria of the share of bitcoiners. In this case, a stable equilibrium is a success (bitcoiners take a large share) while the other (unstable) is a failure (bitcoiners take a marginal share or vanish). However, if the inflation rate of traditional money decreases, the successful equilibrium disappears to start approaching the failure even if Bitcoin is currently widely accepted. Furthermore, welfare comparisons suggest that an increase in the share of bitcoiners has a negative effect; hence, the benefit from reductions in the transaction costs must compensate for the welfare erosion if Bitcoin is accepted as a new kind of payment system. If the author is to succeed, the Bitcoin community or the public authorities need to be prepared for protecting the system from several illicit activities.


2011 ◽  
Vol 52 (3) ◽  
pp. 935-959 ◽  
Author(s):  
S. Borağan Aruoba
Keyword(s):  

2007 ◽  
Vol 48 (2) ◽  
pp. 575-606 ◽  
Author(s):  
Kazuya Kamiya ◽  
Takashi Shimizu

2000 ◽  
Vol 4 (3) ◽  
pp. 289-323 ◽  
Author(s):  
Gabriele Camera

I examine the robustness of monetary equilibria in a random-matching model, where a more efficient mechanism for trade is available. Agents choose between two trading sectors: the search and the intermediated sector. In the former, trade partners arrive randomly and there is a trading externality. In the latter, a costly matching technology provides deterministic double-coincidence matches. Multiple equilibria exist with the extent of costly matching endogenously determined. Money and “mediated” trade may coexist. This depends on the size of the probability of a trade, relative to the cost of deterministic matching. This outcome is inferior for an increasing-returns externality. Under certain conditions, regimes with only costly matching are welfare superior to monetary regimes with random matching.


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