Konferenzbeitrag

Application of a new spatial computable general equilibrium model for assessing strategic transport and land use development options in London and surrounding regions

This paper reports the application of our new spatial computable general equilibrium (SCGE) model for analyzing the wider effects of strategic transport and land use development options. We examine the insights afforded by a SCGE model relative to those provided by existing land use and transport models into the effectiveness of transport and land use strategies. We start from a static imperfect competition computable general equilibrium model for an open economy, and extend it to incorporate (1) Hicks-neutral agglomeration effects that arise from external increasing returns to scale induced from urbanization and transport improvements, (2) land as an explicit factor input to production, and (3) commuting and migration of labour in a dynamic labour market. These extensions are built on models of constant elasticity of substitution specified for production technology and utility functions, interregional trade pooling, concave-shaped iceberg transport costs, the Armington specification regarding product varieties, the Dixit and Stiglitz type of monopolistic competition among producers, and the concept of the spatial economic mass. Data from London and surrounding regions is used to calibrate and validate the model. We report its applications in studying suburban road capacity expansion, high speed rail links and suburban and exurban land supply. The model results obtained so far are in line with theoretical expectations and provide new quantification of the costs and benefits that feed into the assessment of those strategies. Some on-going and further developments of the model include (1) All exogenous parameters for setting up the model are subject to further refinement from conducting sensitivity tests with respect to the magnitude of the model responses, (2) Flows between zones can in the future be mapped on to transport networks, e.g. through linking to a detailed transport model, and (3) the model may be extended with a recursive dynamic structure for policy analysis by incremental policy horizons.

Sprache: Englisch

Erschienen in: Series: 52nd Congress of the European Regional Science Association: "Regions in Motion - Breaking the Path", 21-25 August 2012, Bratislava, Slovakia

Klassifikation: Wirtschaft
Computable General Equilibrium Models
Models of Trade with Imperfect Competition and Scale Economies; Fragmentation
Trade and Labor Market Interactions
Trade: Forecasting and Simulation
Economic Development: Urban, Rural, Regional, and Transportation Analysis; Housing; Infrastructure
General Equilibrium and Welfare Economic Analysis of Regional Economies
Transportation Economics: Government and Private Investment Analysis; Road Maintenance, Transportation Planning

Thema: Computable general equilibrium
spatial modelling
increasing returns to scale
integrated land use and transport modelling

Ereignis: Geistige Schöpfung

(wer): Zhu, Jie
Jin, Ying
Echenique, Marcial

Ereignis: Veröffentlichung

(wer): European Regional Science Association (ERSA)

(wo): Louvain-la-Neuve

(wann): 2012

Handle: http://hdl.handle.net/10419/120718

Letzte Aktualisierung: 10.03.2025, 11:46 MEZ

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Konferenzbeitrag

Beteiligte

Zhu, Jie
Jin, Ying
Echenique, Marcial
European Regional Science Association (ERSA)

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2012

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Application of a new spatial computable general equilibrium model for assessing strategic transport and land use development options in London and surrounding regions

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