Ole Boysen

Ole Boysen

orcid

Research Focus & Metrics

Academic Career Length

24Years (2003-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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9 December 2022 in Food Policy
Verified
Journal Article
Open access
OBOle Boysen
Ole Boysen
EFEmanuele Ferrari
Emanuele Ferrari
VNVictor Nechifor
Victor Nechifor
PTPascal Tillie
Pascal Tillie

13 June 2018 in PLOS ONE
Verified
Journal Article
Open access
PDF file
CFClementine Furz
Clementine Furz
JLJonas Luckmann
Jonas Luckmann
OBOle Boysen
Ole Boysen
SZSabine Zikeli
Sabine Zikeli
HGHarald Grethe
Harald Grethe
Organic agriculture (OA) is considered a strategy to make agriculture more sustainable. Bhutan has embraced the ambitious goal of becoming the world’s first 100% organic nation. By analysing recent on-farm data in Bhutan, we found organic crop yields on average to be 24% lower than conventional yields. Based on these yield gaps, we assess the effects of the 100% organic conversion policy by employing an economy-wide computable general equilibrium (CGE) model with detailed representation of Bhutan’s agricultural sector incorporating agroecological zones, crop nutrients, and field operations. Despite a low dependency on agrochemicals from the onset of this initiative, we find a considerable reduction in Bhutan’s GDP, substantial welfare losses, particularly for non-agricultural households, and adverse impacts on food security. The yield gap is the main driver for a strong decline in domestic agricultural production, which is largely compensated by increased food imports, resulting in a weakening of the country’s cereal self-sufficiency. Current organic by default farming practices in Bhutan are still underdeveloped and do not apply the systems approach of organic farming as defined in the IFOAM organic farming standards. This is reflected in the strong decline of nitrogen (N) availability to crops in our simulation and bears potential for increased yields in OA. Improvement of soil-fertility practices, e.g., the adoption of N-fixing crops, improved animal husbandry systems with increased provision of animal manure and access to markets with price premium for organic products could help to lower the economic cost of the large-scale conversion.

1 July 2019 in World Development
Verified
Journal Article
Open access
OBOle Boysen
Ole Boysen
KBKirsten Boysen‐Urban
Kirsten Boysen‐Urban
HBHarvey Bradford
Harvey Bradford
Jean BaliéJean Balié
Jean Balié
• Estimating effects of highly processed food (HPF) taxes on obesity and underweight. • Trade liberalization mitigates underweight but aggravates obesity prevalence in SSA. • Taxes on HPF reduce obesity, increase underweight but effects differ by region, income, gender. • Magnitude of consumption taxes needs to be very substantial to have a notable effect. • Integrated policy framework considering both issues simultaneously is required.

20 May 2015 in South African Journal of Economics
Verified
Journal Article
Closed access
PDF file
OBOle Boysen
Ole Boysen

1 July 2015 in The Journal of International Trade & Economic Development
Verified
Journal Article
Closed access
OBOle Boysen
Ole Boysen
HJHans Grinsted Jensen
Hans Grinsted Jensen
AMAlan Matthews
Alan Matthews
Despite substantial reforms, the European Union (EU)'s Common Agricultural Policy (CAP) is still criticised for its detrimental effects on developing countries. This paper provides updated evidence on the impact of the CAP on one developing country, Uganda. It goes beyond estimating macrolevel economic effects by analysing the impacts on poverty. The policy simulation results show that eliminating EU agricultural support would have marginal but nonetheless positive impacts on the Ugandan economy and its poverty indicators. From the perspective of the EU's commitment to policy coherence for development, this supports the view that further reducing EU agricultural support would be positive for development.

22 November 2014 in Mitigation and Adaptation Strategies for Global Change
Verified
Journal Article
Closed access
PDF file
ADAndre Deppermann
Andre Deppermann
MBMarkus Blesl
Markus Blesl
OBOle Boysen
Ole Boysen
HGHarald Grethe
Harald Grethe
DBDavid Bruchof
David Bruchof