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Course Overview

Applied Data Analysis: Introduction to and Application of the Partial Equilibrium Model CAPRI in Market and Policy Analysis 2025

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Background

In collaboration with the CAPRI network, the Faculty of Life Sciences Thaer-Institute International Agricultural Trade And Development at the Humboldt University zu Berlin and the Thünen institute for farm economics organizes and offers this CAPRI course for beginners. CAPRI (Common Agricultural Policy Regional Impact Analysis) is a global agroeconomic model developed for policy impact assessment purposes. Operational for two decades, it supports decision-making related to the Common Agricultural Policy of the EU and its implementation at the Member State and regional levels. The effects of agricultural, environmental and trade policies on agricultural production, consumption, prices and trade, as well as environmental indicators, are analysed in a comparative-static framework in which the simulated results are compared to a baseline scenario.

Aims of the training session

The CAPRI course aims at bringing together students, modelers, developers and any individuals with a strong interest and background in agriculture related research to improve their knowledge about agricultural economics and quantitative modeling of agricultural, environmental and trade policies with the CAPRI system. Discussions on common issues on agricultural policy, policy modelling, model development and maintenance with CAPRI developers and users will support knowledge generation and exchange of experiences in the community. The focus of this course is to provide participants with fundamental knowledge of CAPRI model to support and foster its further independent use for educational and research purposes (at the advanced level). Participants will learn to use the CAPRI model for scenario analysis and get acquainted with its Graphical User Interface (GUI), its structural blocks and its development approach. Special attention will be given to hands-on exercises on ex-ante impact assessments of agricultural policy changes in the agricultural sector, agri-food markets and the environment.

Contact and Lectures

The course will be led by Alexander Gocht with the support of Davit Stepanyan, Davide Pignotti, Ferike Thom, Jörg Rieger with contributions of core developers of the CAPRI network such as Maria Blanco, Torbjörn Jansson, Caetano Beber.

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1. Introduction to CAPRI and GAMS course – First day: 17 April 2025, 12:00–16:00.

Time Format TrainersTopic of the lecture
12:00 - 12:45 pptFerike ThomDavide PignottiGAMS modeling language. General introduction
13:00 - 13:45 Slides-ppt Exercise 1 - MyFarm in ExcelFerike ThomDavide PignottiMyFarm LP modeling Excel; Main elements of a GAMS model
14:15 - 15:00 Exercise 2 - MyFarm in GAMSFerike ThomDavide PignottiCoding MyFarm LP model in GAMS; Solver output
15:15 - 16:00 Exercise 3 - MyFarm_sets&sumFerike ThomDavide PignottiSolver output; Improving the efficiency. Sets, Subsets, Alias, Sum

2. GAMS Course – Second day: 24 April 2025, 12:00–16:00.

Time Format TrainersTopic of the lecture
12:00 - 12:45 see Exercise 3 Davit StepanyanIntroducing Sets and the Sum operator in MyFarm LP & useful statements
13:00 - 13:45 Exercise 4_data export,Exercise 5_data import,Exercise 5_data.xlsxDavit StepanyanData exchange with Excel
14:15 - 15:00 slides Davit StepanyanIntroducing common income support schemes
15:15 - 16:00 Exercise 6Davit StepanyanScenario analysis with GAMS for VCS and decoupling support schemes

3. GAMS Course – Third day: 5 May 2025, 12:00–16:00.

Time Format TrainersTopic of the lecture
12:00 - 12:45 see Exercise 6Alex GochtFerike ThomProduction Quota
13:00 - 13:45 Exercise 7Alex GochtFerike ThomCrop nutrient need in MyFarm
14:15 - 15:00Exercise 8,Exercise 9Alex GochtFerike ThomFertilizer pricing and purchasing
15:15 - 16:00 Slides_market_model,Exercise 10Slides_market_model didactic Capri Model, Exercise 11Alex GochtFerike ThomIntro to partial equilibrium market model

4. CAPRI Introduction - Forth day: 22 May 2025, 12:00-16:00.

Time Format TrainersTopic of the lecture
12:00 - 12:45 slides Alex GochtDavide PignottiSetting up the system
13:00 - 13:45 slidesTorbjörn Jansson (SLU) Structure of CAPRI
14:15 - 15:00 slides Alex GochtDavide PignottiUsing CAPRI with the GUI
15:15 - 16:00 slides Alex GochtDavide PignottiRunning your first simulation

5. CAPRI Introduction: Analyzing results - Fifth day: 05 June 2025, 12:00-16:00.

Time Format TrainersTopic of the lecture
12:00 - 12:45 Slides/Demo Davit StepanyanDavide PignottiLoading Results
13:00 - 13:45 Slides/Demo Davit StepanyanDavide PignottiNavigating the Result Viewer
14:15 - 15:00 Slides/Demo Davit StepanyanDavide PignottiIn-depth exercises
15:15 - 16:00 Slides/Demo Davit StepanyanDavide PignottiIn-depth exercises

6. Presentation of Selected Studies with CAPRI – Sixth day: 12 June 2025, 12:00-16:00.

Time Format TrainersTopic of the lecture
12:00 - 12:45 ppt Torbjörn Jansson (SLU)Applications with CAPRI
13:00 - 13:45 Slides NA Agora Study
14:15 - 15:00 Slides NAJRC Study
15:15 - 16:00 Slides NATBD

7. CAPRI Supply Module – Seventh day: 19 June 2025, 12:00–16:00.

Format TrainersTopic of the lecture
12:00-12:15ppt Alex Gocht2.1. Shock: Input price changes for mineral fertilizer with and without market
12:15-13:00ppt Alex Gocht 2.2. Data of the Supply Module
13:15-14:00pptAlex Gocht 2.3. Overview Supply Module
14:30-16:00Slides Torbjörn Jansson (SLU)Income Caluculation

8. CAPRI Supply Module – Eighth day: 26 June 2025, 12:00–16:00.

Format Trainers Topic of the lecture
12:00-12:15 Davit StepanyanSummary “learned so far”
12:15-13:00VL/ppt/Excel/GAMSDavit Stepanyan2.3. Calibration of the Supply module
13:15-14:00VL/ppt/Excel/GAMSDavit Stepanyan 2.4 Test Calibration
14:30-16:00pptDavide Pignotti 2.5. Shock 1 price shock for cow milk

9. CAPRI Market Module – Ninth day: 3 July 2025, 12:00–16:00.

Format TrainersTopic of the lecture
12:00-12:15ppt/hand-on Alex GochtSummary “learned so far”
12:15-13:30 ppt Ana Klinnert (JRC) 2.6. Shock 2 Yield with and without market
13:30-15:00pptAlex Gocht 3. Introduction to market module
15:15-16:00pptTorbjörn Jansson (SLU)

10. CAPRI Market Module – Tenth day: 10 July 2025, 12:00–16:00.

Format TrainersTopic of the lecture
12:00-12:15 ppt/Hand on Alex GochtSummary “learned so far”
12:15-13:15 ppt/Hand on (continuation of the introduction to the market model) Alex Gocht (breakout session)3.1. Import Ban Soy in China
13:30-14:30 ppt/Hand on Jörg Rieger (breakout session) 3.2. Shock 2 Human consumption
14:45-15:30 ppt/Hand on Ferike Thom (breakout session)3.3. Shock 3 Biofuels
13:30-15:00 ppt/Hand on all tbd + feedback round

11. TBD – Eleventh day: 17 July 2025, 12:00–16:00.

Format Trainers Topic of the lecture
12:00-12:15
12:15-13:15
13:30-14:30
14:45-15:30
13:30-15:00

Acknowledgment

BrightSpace and ACT4CAP27 are funded by the European Union. Horizon Europe Grant Agreement Numbers: BrightSpace 101060705/ACT4CAP27 101134874. Views and opinions expressed are however those of the authors only and do not necessarily reflect those of the European Union or the European Commission. Neither the European Union nor the granting authority can be held responsible for them.
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