Abstract
Undoubtedly many of the observable impacts on ecological systems (e.g. depletion of minerals and species, emissions and waste) can be derived from economic activities. But the relationship between the two is far from being fully clarified in scientific analysis. Either the focus on this impact perspective and/or lack of economic knowledge often leads to a specific framing of economic analysis in this environmental context: Firstly, only economic aggregates (like gross domestic product) and their dynamics are considered; secondly, this analysis is normally carried out by using computable modeling frame works (like computable general equilibrium models). What is missing in such a framework is a realistic consideration of the microeconomic foundation for the driving forces of economic processes. To assume a representative optimizing agency is not sufficient in this context because neither behavioral constraints (in terms of information processing and knowledge acquisition) nor non-linear interaction effects between economic actors can be taken into account by making this assumption. A realistic view on the microeconomic background of observable economic aggregates is not only important for explaining the (aggregate) economic output itself, it is also essential for assessing the possibilities and constraints for political regulation.
This paper has been previously published in International Economics and Economic Policy Special Issue on “International Economics of Resources and Resource Policy”, Volume 7, Numbers 2–3/August 2010.
Role of the funding source: This article is based on research conducted within the research project “2nd order innovations? An actor oriented analysis of the genesis of knowledge and institutions in regional innovation systems”, which was funded by the VolkswagenStiftung, Germany.
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- 1.
This problem is often circumvented by postulating targets (e.g. in terms of emissions) without showing by means of which transitions agents can meet these targets and how these transitions can be triggered. If this would be specified the uncertainty with regard to emission scenarios could be reduced (cf. IPCC 2007; Pielke et al. 2008).
- 2.
Depending on data availability there are generally two different ways to calibrate the initial values of the state variables and the parameters of the model: either indirectly by postulating the reproduction of given data time series or directly by doing behavioral observations (cf. Beckenbach et al. 2009; Beckenbach and Daskalakis 2008; Windrum et al. 2007; Edmonds 2001).
- 3.
Hence, due to methodological reasons we will neither deal with interacting emissions, nor with impacts related to the extraction side, nor with the effects all these impacts have on the state and dynamics of the various parts of the ecological system.
- 4.
This could be either a single human being in its essential properties or a group of human beings having at least one common property being essential for their way to act.
- 5.
To assume one or several simple relations (e.g. as aggregated equations or as production functions) is still the state of the art in modern growth theory (cf. e.g. Fine 2000). No attempt has been made to show that these are empirically and methodologically legitimate assumptions. Using evolutionary methodologies defines an alternative path for conceptualizing growth in general and especially environmental innovation (cf. Frenken and Faber 2009). In the sequel we will follow this path of economic thinking.
- 6.
This essential feature of novelty creation is ignored in theories of “endogenous growth” (e.g. Romer 1990) where r&d is a continuous and riskless activity separated from other firm activities.
- 7.
To ignore this (non-linear) interdependency of new and old activities (and of their outcomes respectively) is another failure of most contributions to “endogenous growth theory”: here every innovation is immediately patented and the new activity is simply an add-on for total production (cf. Romer 1990).
- 8.
According to this caveat the novelty creating process is totally conjectural without anything to generalize. Due to the idiosyncratic nature of the processes as well as of the persons involved in innovations there is seen only a limited possibility for some after-the-fact analysis on an aggregated level (cf. e.g. Vromen 2001).
- 9.
- 10.
These explanantia – in model terms: variables – are moderated by behavioral traits (e.g. risk attitude, curiosity) – in model terms: parameters.
- 11.
In the present context only routine, innovation and imitation are taken into account.
- 12.
The background for this assumption is the positive relation between the broadness of knowledge and the firm’s flexibility as regards to the demand side.
- 13.
The subscript for the sector is skipped here.
- 14.
In developed market economies this intermediary part of the sectoral production is on average about 2/3 of the total sectoral production.
- 15.
How these coefficients of intermediary production can be conceptualized dynamically is an intricate question which is beyond the scope of this elaboration (cf. Pan 2006).
- 16.
This activity level is measured in value terms because price fluctuations are not dealt with in the model.
- 17.
This means that conventional products as well as older innovative products are substituted by newer innovative products.
- 18.
The final demand for conventional products is treated “amorphously” in our model, i.e. we do not distinguish single conventional products; rather we treat this part of final demand as if there is only one conventional product in each sector.
- 19.
In the debate on decarbonisation the reduction of emissions is only dealt with in terms of technological potentials. How these potentials are transformed into technologies of market agents by means of competition and environmental instruments remains rather vague in this analysis. But even given these instruments the overall effect on emissions depends on the assumption about the growth of GDP which is treated as a separated issue (cf. Green et al. 2007).
- 20.
In the initial phase (until about t = 10) the model is swinging in: The first innovative products have to be developed (which is time-consuming) before they can be put on the market, and their diffusion starts only slowly. Therefore the nearly constant level of final demand and emissions in this transient phase rather constitutes an artefact of the model.
- 21.
In the given case the rebound effect has a direct component resulting from the increasing attractiveness of innovative products for their appliers and an indirect component resulting from intersectoral interdependencies. These two components are normally not taken into account because the focus is on cost reduction in a given sector.
- 22.
yts is increased from 0.02 to 0.5 for t > 60 [cf. section III(4)].
- 23.
- 24.
The reason for that is that the increase of innovation costs is reducing the relative force toward innovation on the agent level (cf. above).
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Beckenbach, F., Briegel, R. (2011). Multi-agent Modeling of Economic Innovation Dynamics and Its Implications for Analyzing Emission Impacts. In: Bleischwitz, R., Welfens, P., Zhang, Z. (eds) International Economics of Resource Efficiency. Physica-Verlag HD. https://doi.org/10.1007/978-3-7908-2601-2_14
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