ETD

Archivio digitale delle tesi discusse presso l'Università di Pisa

Tesi etd-06182014-141527


Tipo di tesi
Tesi di laurea magistrale
Autore
MARTELLINI, PAOLO
URN
etd-06182014-141527
Titolo
Financial and labor market frictions in a New-Keynesian DSGE Model
Dipartimento
ECONOMIA E MANAGEMENT
Corso di studi
ECONOMICS
Relatori
relatore Prof. Bottazzi, Giulio
Parole chiave
  • Financial Accelerator
  • Business Cycle
  • Search and Matching frictions
Data inizio appello
07/07/2014
Consultabilità
Completa
Riassunto
My aim is to build a New-Keynesian DSGE model embedded with both financial and labor market search and matching frictions. At the present moment, much of the literature has focused on either of those frictions but has not investigated their interaction at business cycle frequency. My work addresses this issue by building a model in which firms' borrowing from banks is affected by costly state verification. For this reason, the optimal amount of borrowing is increasing in the firms' net worth. This feature creates a positive feedback between the value of net worth, capital demand and output. At the same time, the total amount of workers is not free to adjust in every period. Instead, a fraction of the employees exogenously separate in every period, and some new workers are hired by firms. The incentive to hire is linked to the value to the firm of having an additional worker. Since such value is affected by the conditions in the capital market - given that, during depressions, optimal capital demand is low and viceversa - the hiring of new workers may be severely reduced in a downturn, and unemployment is likely to increase as a consequence.
In this regard, my work addresses the weak performance of search and matching models - that are not equipped with financial frictions - in replicating the high volatility of unemployment that can be found in the data. Furthermore, reactions of real variables to shocks have proved to be too fast in current financial accelerator models. The presence of frictions in the labor market may easily delay such responses - the total number of employees adjusts slowly - and improve the performance of this kind of models.
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