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PublicationWorking paper

Working paper No. 295: An Econometric Analysis of Divergence of Renewable Energy Invention Efforts in Europe

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Abstract

The objective of this paper is to investigate the presence of convergence (or divergence) of invention efforts per capita in the renewable energy field across European Union (EU) countries. Divergence may imply a risk of a lower level of goal fulfilment regarding the share of renewable energy in the EU energy mix. This is due to free-rider issues and sub-optimal investment levels, in turn making it more expensive and cumbersome to expand renewable energy production. Convergence suggests a possible faster renewable energy goal achievement. The econometric analysis is based on patent application counts per capita for 13 EU Member States over the time period 1990–2012. The methods used draw on the economic convergence literature. First, we rely on a panel data set to test for conditional β-convergence. Moreover, a distributional dynamics approach is employed to test for σ- and γ-convergence, and analyse the intra-distributional dynamics. The results indicate conditional β- and σ-divergence in renewable energy invention capabilities across the 13 countries, thus suggesting that some EU countries tend to free-ride on the development efforts of other Member States.

Grafström, J. (2017). An Econometric Analysis of Divergence of Renewable Energy Invention Efforts in Europe. Ratio Working Paper No. 295. Stockholm: Ratio.

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Author
Grafström, J.
Publication year
2017
Published in

Ratio Working Paper

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    Jonas Grafström

    +46703475854jonas.grafstrom@ratio.se

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Barriers to circularity in the metals industry: an analytical framework of feedback and lock-in effects

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Published in

Mineral Economics.

Abstract

The metals sector faces multiple and interconnected barriers to achieving circularity. This study examines steel, aluminum, and copper to illustrate how challenges vary between metals. While copper can often be recycled without quality loss, steel and aluminum face alloy-related limitations that drive downcycling and quality degradation. Using a matrix-based analytical framework, the study maps the interactions between economic, technological, institutional, and social constraints, distinguishing between primary drivers, secondary effects, feedback loops, and lock-in mechanisms. The results show strong reinforcing links between economic, technological, and institutional domains, with social factors playing a more indirect role. These findings align with observed industry patterns while adding a structured, quantitative perspective. By clarifying how different barriers combine and reinforce one another, the analysis identifies priority areas for intervention to advance metals recycling and support the transition toward a more circular economy.

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Publication year

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Published in

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Abstract

Circular economy debates often acknowledge material lifespans and delays, but time is usually treated as a contextual issue rather than a structural barrier. The contribution is to reframe circular economy transitions as intertemporal processes by treating time as an endogenous structural barrier. A framework is developed that classifies goods into short-, medium-, and long-lived categories, demonstrating how lagged inflows and valuation biases suppress aggregate circularity even when technology improves. By making temporal mechanisms explicit, the analysis explains why indicators remain stagnant despite policy and efficiency gains. The contribution is to introduce time as an endogenous barrier, integrating insights from environmental and resource economics into circular economy theory and showing how delayed substitution shapes both firm investment and policy outcomes.

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