Inflation driven by a single dark spinor field is discussed. We define the notion of a dark spinor field and derive the cosmological field equations for such a matter source. The conditions for inflation are determined and an exactly solvable model is presented. We find the power spectrum of the quantum fluctuation of this field and compare the results with scalar field inflation. PACS numbers:...

This paper studies the effects the implementation of an inflation targeting (IT) regime has on the dynamics of inflation in Mexico. We contextualize the need for a regime change and study whether the implementation of this regime has made a considerable change in the dynamics of inflation in Mexico. Consumer prices are modelled using a markup model. The markup model suggests a long run relation...

We study the optimal design of a disinflation plan by planner who lacks commitment and has imperfect control over inflation. The government’s reputation for being committed to evolves as public compares realized inflation announced targets. Reputation is valuable it helps curb expectations. At same time, plans that are more tempting break lead larger expected reputational losses in ensuing equi...

Dynamics of eternal inflation on the landscape admits description in terms of the Martin-Siggia-Rose (MSR) effective field theory that is in one-to-one correspondence with vacuum dynamics equations. On those sectors of the landscape, where transport properties of the probability measure for eternal inflation are important, renormalization group fixed points of the MSR effective action determine...