New Economics Papers
on Computational Economics
Issue of 2013‒10‒25
five papers chosen by

  1. Exploiting Set-Based Structures to Accelerate Dynamic Programming Algorithms for the Elementary Shortest Path Problem with Resource Constraints By Range, Troels Martin
  2. Analysis of Climate Policies with GDyn-E By Golub, Alla
  3. Robustness and Stability of Limit Cycles in a Class of Planar Dynamical Systems By Datta, Soumya
  4. Recent Reforms in Spanish Housing Markets: An Evaluation using a DSGE Model By Juan S Mora-Sanguinetti; Margarita Rubio
  5. Simulating poverty in Europe : the potential contributions of employment and education to reducing poverty and social exclusion by 2020 By Ajwad, Mohamed Ihsan; Simler, Kenneth; Azam, Mehtabul; Dasgupta, Basab; Bonch-Osmolovskiy, Misha; Topinska, Irena

  1. By: Range, Troels Martin (Department of Business and Economics)
    Abstract: In this paper we consider a label-setting dynamic-programming algorithm for the Elementary Shortest Path Problem with Resource Constraints (ESPPRC). We use a pseudo resource to guarantee that labels are permanent. We observe that storing the states based on the subset of nodes visited by the associated path can improve the performance of the algorithm significantly. To this end we use a variant of a prefix tree to store the states and show by computational experiments that the performance of the dynamic programming algorithm is improved significantly when the number of undominated states is large.
    Keywords: Elementary shortest path problem; resource constraints; dynamic programming; prefix tree
    JEL: C61
    Date: 2013–10–17
  2. By: Golub, Alla
    Abstract: This paper documents GDyn-E CGE model developed for analysis of climate policies in dynamic GTAP framework. Description of the modeling framework is followed by a presentation of a simple application focused on emission leakage associated with a unilateral GHG abatement policy, analysis and decomposition of the emission leakage, and sensitivity analysis.
    Date: 2013
  3. By: Datta, Soumya
    Abstract: Using a macroeconomic example, the paper proposes an algorithm to symbolically construct the topological normal form of Andronov-Hopf bifurcation. It also offers a program, using the Computer Algebra System `Maxima', to apply this algorithm. In case the limit cycle turns out to be unstable, the possibilities of the dynamics converging to another limit cycle is explored.
    Keywords: Andronov-Hopf bifurcation, Limit cycles
    JEL: C62 C69
    Date: 2013–02
  4. By: Juan S Mora-Sanguinetti; Margarita Rubio
    Abstract: After a long academic debate, Spain finally repealed in 2012 the deduction for home purchase. The abrogation took effect in 2013. In parallel, the VAT for the purchase of new housing was increased after a short period in which it had a reduced rate. The aim of this paper is to assess the macroeconomic effects of these two relevant housing market reforms. In order to do that, we use a dynamic stochastic general equilibrium (DSGE) model calibrated to capture the key ratios of the Spanish economy. The model includes a housing market, covering both the rental market side and the property market side and credit-constrained agents. We find that these measures drive down housing prices and have a negative impact on output and employment in the construction sector. However, in the long run, this last effect is offset by the benefits of a reduction in distortionary taxes.
    Keywords: Housing Market Reforms, Rental Market, House Prices, Home Purchase Deduction, VAT on New Home Purchase
  5. By: Ajwad, Mohamed Ihsan; Simler, Kenneth; Azam, Mehtabul; Dasgupta, Basab; Bonch-Osmolovskiy, Misha; Topinska, Irena
    Abstract: This paper sheds light on the impact of improving employment and education conditions on poverty and social exclusion indicators. More specifically, it answers the following question: Will achieving the Europe 2020 national targets on employment and education lead countries to achieve the Europe 2020 poverty and social exclusion target with no other policy interventions? The paper presents a simple partial equilibrium model that is flexible enough to be implemented in a number of different settings and uses widely available household survey data. The simulation model analyzes poverty and social exclusion outcomes in response to changes in education completion rates and employment rates. The model is applied to ten of the European Union's new Member States -- Bulgaria, the Czech Republic, Estonia, Hungary, Latvia, Lithuania, Poland, Romania, Slovakia, and Slovenia -- and the model's performance is evaluated through a validation exercise. The Europe 2020 national employment targets are ambitious in many of the new Member States, given historical employment patterns in the countries. Especially in light of the slow and uncertain recovery, labor markets remain weak and employment rates in 2020 could fall short of rates targeted by national policy makers. In this eventuality, the poverty and social exclusion goals may not be reached in many of the new Member States without additional policy measures.
    Keywords: Rural Poverty Reduction,Health Systems Development&Reform,Labor Policies,Achieving Shared Growth,Poverty Monitoring&Analysis
    Date: 2013–10–01

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