Long‐Run Comparative Statics Under Output and Land Price Uncertainty

1988 ◽  
Vol 70 (1) ◽  
pp. 133-141 ◽  
Author(s):  
Quirino Paris
Author(s):  
Lawrence A. Boland

This chapter examines the explanatory purpose of building equilibrium models and the need to consider dynamics and disequilibria. It examines Marshall’s two ‘Principles’ of explanation, the ‘Principle of Substitution’ (essentially the usual neoclassical premise that every decision maker is a maximizer) and the ‘Principle of Continuity’ (that using the assumption of maximization as a basis for explanation is not possible without a continuous range of options to choose among). Marshall’s main mode of explanation using these Principles is his comparative statics analysis. His version of comparative statics introduces a role for time by distinguishing his long-run from short-run equilibria. With this in mind, the chapter goes further to explain why an equilibrium state implies recognition of disequilibrium dynamics and why equilibrium models must recognize the knowledge necessary for the dynamics of equilibrium attainment.


Agriculture ◽  
2020 ◽  
Vol 10 (5) ◽  
pp. 183 ◽  
Author(s):  
Mateusz Tomal ◽  
Agata Gumieniak

This research deals with the problem of agricultural land market efficiency using the spatial market integration concept as well as the present value (PV) model. Empirically, it aims to test the convergence of agricultural land prices across Polish provinces. In order to check the law of one price (LOP), good-quality, medium-quality and bad-quality land sales markets are examined separately. Furthermore, this study is complemented by an analysis of the drivers behind agricultural land price convergence. The main method of testing price convergence is the log t regression. The latter was performed in two configurations, i.e., based on trend components of time series extracted using the Hodrick–Prescott filter and the Hamilton filter. Additionally, traditional β- and σ-convergence tests were applied. The obtained results indicated that agricultural land prices tend to converge in relative terms, which means that the provinces share a common long-run growth path. This finding and estimates of traditional convergence tests prove the increasing integration in the agricultural land market in Poland. There is no evidence, however, to support the conclusion that the absolute version of the long-run LOP holds. Moreover, using dynamic fixed effects models, it was identified that for good-, medium- and bad-quality land prices almost the same drivers of convergence apply. The only differences concern the strength of the influence of independent variables on prices of farmland of various types. Additionally, bad-quality land prices are the only ones which are affected by livestock density. Furthermore, estimates of the present value model finally confirmed that the agricultural land sales market in Poland cannot be considered as efficient.


2012 ◽  
Vol 4 (4) ◽  
pp. 1-34 ◽  
Author(s):  
Dilip Mookherjee ◽  
Silvia Prina ◽  
Debraj Ray

Theories based on partial equilibrium reasoning alone cannot explain the widespread negative cross-sectional correlation between parental wages and fertility, without restrictive assumptions on preferences and childcare costs. We argue that incorporating a dynamic general equilibrium analysis of returns to human capital can help explain observed empirical patterns. Other by-products of this theory include explanations for intergenerational mobility without stochastic shocks, connections between mobility and fertility patterns, and locally determinate steady states. Comparative statics exercises on steady states shed light on the effects of education, childcare subsidies, child labor regulations, and income redistribution policy on long run living standards. (JEL H23, I31, J13, J24, J62, J82)


Author(s):  
A.K. Mcdermott ◽  
D.C. Smeaton ◽  
G.W. Sheath ◽  
A.E. Dooley

A model of the New Zealand beef value chain, from conception to export, was constructed. The model was parameterised at the national level so that issues and opportunities within the beef industry can be examined at a high level by researchers and industry participants. The model is capable of modelling changes in farm practice, market situations and the industry structure. To illustrate the integrative power and value of the model in evaluating change within the beef sector, three scenarios are presented and compared to the status quo: changes in land price; wider use of beef semen in the dairy industry; and introduction of a gene to improve net feed intake. From the three scenarios presented, it is apparent that land price dominates the ability of the NZ beef industry to create value in the long-run. Although behaviour, practices and technologies can contribute to overcoming this factor, such changes will need to be substantive - incremental improvements will not be sufficient. This model provides the basis for facilitating debate on the future of NZ's beef industry and how to ensure long-run profitability. Keywords: beef industry, scenario evaluation, beef systems, value chain model


1979 ◽  
Vol 11 (6) ◽  
pp. 655-664 ◽  
Author(s):  
D S Dendrinos

The paper examines, through comparative statics, the impact on urban form of changes in the price of energy used for transportation. Two specific models are analyzed within a framework of long-run equilibrium: Model 1 involves households that supply an institutionally fixed number of labor hours, and their choice of residential location is affected by energy costs as the only out-of-pocket transportation cost for the journey to work; and model 2 deals with households that trade off travel time for work time and thus incur a time cost equal to the forgone income from production. The paper shows that in model 1 higher gasoline prices do result in less aggregate demand for gasoline and in less suburbanization of the residential activity. In model 2 higher energy prices do not necessarily result in either less suburbanization or less aggregate demand for gasoline.


2009 ◽  
Vol 54 (02) ◽  
pp. 155-166 ◽  
Author(s):  
CLEM TISDELL

It is widely believed that in developing countries, open-access to natural resources, inadequate private property rights, and lack of development of market systems add to the incidence of poverty. Increased economic efficiency is seen as a powerful force for reducing the extent of poverty in developing countries in the long run. While this may be so, it ignores the depth and incidence of poverty that can be generated during adjustments to policy reforms. This possibility constrains policy choices as shown theoretically on natural resource policies and agricultural adjustment policies with Asian examples. Social, behavioral, and institutional features are also considered as they may result in the poverty lock-in of some groups. It is essential to consider dynamic processes and not to rely solely on comparative statics when assessing economic policies to reduce poverty and increase economic efficiency. It is also important to take into account the institutional constraints on policy choices.


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