EconBiz - Find Economic Literature
    • Logout
    • Change account settings
  • A-Z
  • Beta
  • About EconBiz
  • News
  • Thesaurus (STW)
  • Academic Skills
  • Help
  •  My account 
    • Logout
    • Change account settings
  • Login
EconBiz - Find Economic Literature
Publications Events
Search options
Advanced Search history
My EconBiz
Favorites Loans Reservations Fines
    You are here:
  • Home
  • Search: subject_exact:"Vertragstheorie"
Narrow search

Narrow search

Year of publication
Subject
All
Vertragstheorie 7,098 Contract theory 6,980 Vertrag 3,188 Contract 3,185 Prinzipal-Agent-Theorie 2,343 Agency theory 2,330 Theorie 1,346 Theory 1,279 Leistungsanreiz 902 Performance incentive 902 Asymmetrische Information 895 Asymmetric information 880 Moral Hazard 669 Moral hazard 655 Unvollständiger Vertrag 622 Incomplete contract 618 Lieferantenmanagement 563 Supplier relationship management 562 Spieltheorie 544 Game theory 537 Lieferkette 462 Supply chain 462 Vertragsrecht 435 Contract law 430 Verhandlungstheorie 332 Bargaining theory 318 Risk 291 Risiko 290 Adverse Selektion 271 Adverse selection 264 Arbeitsvertrag 261 Incentives 254 Anreiz 247 Experiment 247 Labour contract 247 Transaktionskosten 222 Transaction costs 219 Führungskräfte 199 Managers 196 Risikomanagement 179
more ... less ...
Online availability
All
Free 2,907 Undetermined 1,591 CC license 58
Type of publication
All
Book / Working Paper 3,916 Article 3,182
Type of publication (narrower categories)
All
Article in journal 2,841 Aufsatz in Zeitschrift 2,841 Working Paper 1,505 Graue Literatur 1,423 Non-commercial literature 1,423 Arbeitspapier 1,400 Aufsatz im Buch 278 Book section 278 Hochschulschrift 229 Thesis 189 Collection of articles written by one author 50 Sammlung 50 Collection of articles of several authors 34 Sammelwerk 34 Bibliografie enthalten 26 Bibliography included 26 Aufsatzsammlung 23 Konferenzschrift 23 Conference paper 22 Konferenzbeitrag 22 Reprint 19 Lehrbuch 13 Textbook 12 Systematic review 11 Übersichtsarbeit 11 Case study 8 Fallstudie 8 Forschungsbericht 8 Article 6 Conference proceedings 6 Amtsdruckschrift 5 Government document 5 Rezension 5 Advisory report 2 Fallstudiensammlung 2 Festschrift 2 Gutachten 2 Handbook 2 Handbuch 2 Mehrbändiges Werk 2
more ... less ...
Language
All
English 6,739 German 286 French 54 Italian 11 Portuguese 6 Spanish 4 Japanese 2 Polish 2 Dutch 1 Undetermined 1
more ... less ...
Author
All
Schmitz, Patrick W. 54 Martimort, David 47 Edmans, Alex 43 Hart, Oliver D. 43 Watson, Joel 39 Spier, Kathryn E. 34 Calzolari, Giacomo 32 Landeo, Claudia 32 Strausz, Roland 30 Pavan, Alessandro 27 Zehnder, Christian 27 Fahn, Matthias 26 Fehr, Ernst 26 Schwartz, Alan 26 Gabaix, Xavier 25 Kräkel, Matthias 24 MacLeod, William Bentley 24 Schmidt, Klaus M. 22 Felli, Leonardo 21 Saussier, Stéphane 21 Stremitzer, Alexander 20 Bester, Helmut 19 Bolton, Patrick 19 Maggi, Giovanni 19 Engel, Eduardo 18 Fischer, Ronald 18 Olsen, Trond E. 18 Spagnolo, Giancarlo 18 Scott, Robert E. 17 Stole, Lars A. 17 Cabrales, Antonio 16 Dubois, Pierre 16 Sun, Bo 16 Choi, Tsan-Ming 15 Gersbach, Hans 15 Gürtler, Oliver 15 Hoppe, Eva I. 15 Iossa, Elisabetta 15 Krasa, Stefan 15 Sannikov, Yuliy 15
more ... less ...
Institution
All
National Bureau of Economic Research 93 Edward Elgar Publishing 5 Springer Fachmedien Wiesbaden 5 International Accounting Standards Board 4 World Bank 4 Center for the Study of Industrial Organisation 3 Center for the Study of Law and Economics <Saarbrücken> 3 OECD 3 United States / Congress / Senate / Committee on the Judiciary 3 Universitat Pompeu Fabra / Departament d'Economia i Empresa 3 World Bank Group 3 Bonn Graduate School of Economics 2 Centre for Economic Policy Research 2 East Lothian and Merse Whale Fishing Company 2 Europäische Kommission / Generaldirektion Justiz und Verbraucher 2 Innocenzo Gasparini Institute for Economic Research <Mailand> 2 Johns Hopkins University / Department of Economics 2 Massachusetts Institute of Technology / Department of Economics 2 Robert Schuman Centre for Advanced Studies 2 Social Systems Research Institute 2 Stanford Institute for Economic Policy Research 2 Universitetet i Oslo / Økonomisk institutt 2 University of California Los Angeles / Department of Economics 2 University of Cambridge / Department of Applied Economics 2 University of Chicago / Center for Research in Security Prices 2 University of York / Department of Economics and Related Studies 2 Universität Zürich / Sozialökonomisches Institut 2 Alcoa 1 Australian National University / Faculty of Economics and Commerce 1 Betriebswirtschaftlicher Verlag Doktor Th. Gabler 1 Boston College / Department of Economics 1 British Distillery Company 1 Brookings Institution 1 California Agricultural Experiment Station / Department of Agricultural and Resource Economics 1 Center for Economic Analysis <Boulder, Colo.> 1 Center for Economic Research <Tilburg> 1 Christian-Albrechts-Universität zu Kiel / Institut für Weltwirtschaft 1 Clydesdale Banking Company 1 Committee of Inquiry on Contract Farming 1 Diebold Institute for Public Policy Studies <Cambridge, Mass.> 1
more ... less ...
Published in...
All
NBER working paper series 93 Working paper / National Bureau of Economic Research, Inc. 86 Journal of economic theory 81 NBER Working Paper 81 Management science : journal of the Institute for Operations Research and the Management Sciences 80 International journal of production economics 77 Discussion paper / Centre for Economic Policy Research 74 European journal of operational research : EJOR 72 Economics letters 71 CESifo working papers 61 Journal of institutional and theoretical economics : JITE 61 Games and economic behavior 48 The American economic review 46 Journal of economic behavior & organization : JEBO 45 Discussion papers / CEPR 42 International journal of industrial organization 38 Working paper 38 Discussion papers / Governance and the Efficiency of Economic Systems 37 Econometrica : journal of the Econometric Society, an international society for the advancement of economic theory in its relation to statistics and mathematics 37 The review of economic studies 36 Economic theory : official journal of the Society for the Advancement of Economic Theory 35 The Rand journal of economics 32 Discussion paper 30 Production and operations management : an international journal of the Production and Operations Management Society 30 Discussion paper series / IZA 28 Theoretical economics : TE ; an open access journal in economic theory 28 European economic review : EER 26 American economic journal : a journal of the American Economic Association 25 The journal of law, economics, & organization 25 Discussion paper / Center for Mathematical Studies in Economics and Management Science, Northwestern University 24 Industrial marketing management : the international journal for industrial and high-tech firms 24 Manufacturing & service operations management : M & SOM 24 International journal of production research 23 Omega : the international journal of management science 23 IZA Discussion Paper 22 The accounting review : a publication of the American Accounting Association 22 CESifo Working Paper Series 21 Revue d'économie industrielle 20 Journal of financial economics 19 The review of financial studies 19
more ... less ...
Source
All
ECONIS (ZBW) 6,980 EconStor 113 RePEc 2 USB Cologne (EcoSocSci) 2 ArchiDok 1
Showing 1 - 50 of 7,098
Cover Image
Contractual requirements and bidding behavior in public procurement with entry
Drake, Samielle; Xu, Fei - In: Journal of public economic theory 27 (2025) 1, pp. 1-20
Persistent link: https://www.econbiz.de, ebvufind01.dmz1.zbw.eu/10015334494
Saved in:
Cover Image
Contingent contracts in banking : insurance or risk magnification?
Gersbach, Hans - In: Journal of money, credit and banking : JMCB 57 (2025) 1, pp. 267-303
Persistent link: https://www.econbiz.de, ebvufind01.dmz1.zbw.eu/10015396806
Saved in:
Cover Image
Procedural vs. substantive approaches in non-comprehensive contracts
Demougin, Dominique; Bental, Benjamin - 2025
In this study, we examine two adjudication methods designed to resolve disputes between principals and agents concerning bonus payments in relationships characterized by moral hazard and where the parties have been forced to use soft, imprecise, and subjective information to align incentives....
Persistent link: https://www.econbiz.de, ebvufind01.dmz1.zbw.eu/10015396893
Saved in:
Cover Image
Optimal contracts under general mixed constraints : continuity, structure, and applications
Semenov, Aggey - 2025
Persistent link: https://www.econbiz.de, ebvufind01.dmz1.zbw.eu/10015371684
Saved in:
Cover Image
Transactions and legal institutionalism, part II, contracts, money, applications
Hodgson, Geoffrey M. - In: Journal of institutional economics 21 (2025), pp. 1-18
Persistent link: https://www.econbiz.de, ebvufind01.dmz1.zbw.eu/10015376355
Saved in:
Cover Image
All show, no substance : the case of short-term employment contracts
Pimwilai Kijjanapanich - 2025
Persistent link: https://www.econbiz.de, ebvufind01.dmz1.zbw.eu/10015337985
Saved in:
Cover Image
Optimal contracts under moral hazard, adverse selection and limited liability
Martimort, David; Poudou, Jean-Christophe; Thomas, Lionel - 2025
Persistent link: https://www.econbiz.de, ebvufind01.dmz1.zbw.eu/10015329123
Saved in:
Cover Image
Venture capital contracting as bargaining in the shadow of corporate law constraints
Enriques, Luca; Nigro, Casimiro A.; Tröger, Tobias - 2025
Venture capital ("VC") has built a solid reputation for spurring innovation and economic growth, thus emerging as a crown jewel of the U.S. economy since the 1980s. The development of the U.S. VC market has benefited from the enabling nature of U.S. (Delaware) corporate law, which allows parties...
Persistent link: https://www.econbiz.de, ebvufind01.dmz1.zbw.eu/10015330382
Saved in:
Cover Image
Venture capital contracting as bargaining in the shadow of corporate law constraints
Enriques, Luca; Nigro, Casimiro A.; Tröger, Tobias - 2025
Venture capital ("VC") has built a solid reputation for spurring innovation and economic growth, thus emerging as a crown jewel of the U.S. economy since the 1980s. The development of the U.S. VC market has benefited from the enabling nature of U.S. (Delaware) corporate law, which allows parties...
Persistent link: https://www.econbiz.de, ebvufind01.dmz1.zbw.eu/10015331127
Saved in:
Cover Image
Randomization and the robustness of linear contracts
Kambhampati, Ashwin; Peng, Bo; Tang, Zhihao Gavin; … - 2025
Persistent link: https://www.econbiz.de, ebvufind01.dmz1.zbw.eu/10015210831
Saved in:
Cover Image
Optimal pricing of cloud services : committed spend under demand uncertainty
Bergemann, Dirk; Wang, Michael C. - 2025
Persistent link: https://www.econbiz.de, ebvufind01.dmz1.zbw.eu/10015271663
Saved in:
Cover Image
Governance and management of autonomous organizations
Ferreira, Daniel Bernardo Soares; Li, Jin - 2025
Persistent link: https://www.econbiz.de, ebvufind01.dmz1.zbw.eu/10015173415
Saved in:
Cover Image
Stationarity of the optimal enforcement contract in the complete information case
Semenov, Aggey - 2025
Persistent link: https://www.econbiz.de, ebvufind01.dmz1.zbw.eu/10015179448
Saved in:
Cover Image
Suppressing or motivating opportunism? : the effectiveness of contract enforcement in manufacturer-distributor relationship
Feng, Chao; Wenjun, Xie; Hui, Chen; Caixia, Han; … - In: Industrial marketing management : the international … 126 (2025), pp. 56-71
Persistent link: https://www.econbiz.de, ebvufind01.dmz1.zbw.eu/10015386518
Saved in:
Cover Image
Loss aversion, moral hazard, and stochastic contracts
Ho, Hoa - In: Managerial and decision economics : MDE ; the … 46 (2025) 3, pp. 1677-1685
Persistent link: https://www.econbiz.de, ebvufind01.dmz1.zbw.eu/10015386731
Saved in:
Cover Image
Kindred spirits : cognitive frame similarity and good faith provisions in strategic alliance contracts
Hanisch, Marvin; Graf-Vlachy, Lorenz; Häussler, Carolin; … - In: Strategic management journal 46 (2025) 2, pp. 436-469
Persistent link: https://www.econbiz.de, ebvufind01.dmz1.zbw.eu/10015386836
Saved in:
Cover Image
Endogenous choice of price or quantity contract with partial vertical ownership
Hu, Qing; Li, Qian; Mizuno, Tomomichi - 2025
Persistent link: https://www.econbiz.de, ebvufind01.dmz1.zbw.eu/10015395471
Saved in:
Cover Image
Optimal co-development contracts for companion diagnostics
Batun, Sakine; Begen, Mehmet A.; Zaric, Gregory S. - In: European journal of operational research : EJOR 323 (2025) 1, pp. 241-252
Persistent link: https://www.econbiz.de, ebvufind01.dmz1.zbw.eu/10015415589
Saved in:
Cover Image
Comparing subsidies to solve coordination failure
Heijmans, Roweno; Suetens, Sigrid - 2025
Persistent link: https://www.econbiz.de, ebvufind01.dmz1.zbw.eu/10015417634
Saved in:
Cover Image
Extended supplement to "Insurance and inequality with persistent private information"
Bloedel, Alexander W.; Krishna, R. Vijay; Leukhina, Oksana - 2025
This supplement contains auxiliary technical results and proofs omitted from Bloedel, Krishna, and Leukhina (2025) (henceforth BKL) and its Supplemental Appendix (henceforth SA). First, Section I proves parts (a)–(c) and (e)–(f) of Theorem 3 from Appendix B.1 of BKL. (Part (d) of Theorem 3...
Persistent link: https://www.econbiz.de, ebvufind01.dmz1.zbw.eu/10015408897
Saved in:
Cover Image
Mitigating moral hazard in insurance contracts using risk preference design
Liu, Shutian; Zhu, Quanyan - In: Operations research letters : a journal of INFORMS … 62 (2025), pp. 1-8
Persistent link: https://www.econbiz.de, ebvufind01.dmz1.zbw.eu/10015432303
Saved in:
Cover Image
Grouping agents with persistent types
Malcomson, James M. - In: Games and economic behavior 152 (2025), pp. 150-174
Persistent link: https://www.econbiz.de, ebvufind01.dmz1.zbw.eu/10015426789
Saved in:
Cover Image
Contracts in crisis : the war in Ukraine and long-term contracts in energy markets
Kröger, Mats; Neuhoff, Karsten; Schwenen, Sebastian - 2025
We examine the impact of the war in Ukraine on long-term contracts in energy markets. We find that traded contract volumes fall by 65 percent in the first months of the war. A collapse in bilateral trading contributes most to this decline. To protect themselves from price shocks, firms...
Persistent link: https://www.econbiz.de, ebvufind01.dmz1.zbw.eu/10015420103
Saved in:
Cover Image
Social enterprise under moral hazard : who gets state subsidies and active financing?
Lovas, Anita; Berlinger, Edina; Tóth, Fanni - In: The European journal of development research 37 (2025) 1, pp. 55-78
Persistent link: https://www.econbiz.de, ebvufind01.dmz1.zbw.eu/10015193250
Saved in:
Cover Image
Fairness properties of compensation schemes
Becker, Christoph; Fehr, Dietmar; Rau, Hannes; … - 2025
How do different characteristics of pay-for-performance schemes affect fairness perceptions? In two studies, we systematically consider three major classes of incentive schemes: continuous piece rate incentives, discrete bonus schemes, and tournament incentives. We find that pay inequality has a...
Persistent link: https://www.econbiz.de, ebvufind01.dmz1.zbw.eu/10015414143
Saved in:
Cover Image
Highway to sell
Bontems, Philipe; Calmette, Marie-Françoise; … - 2025
Persistent link: https://www.econbiz.de, ebvufind01.dmz1.zbw.eu/10015436681
Saved in:
Cover Image
All hat and no cattle? : ESG incentives in executive compensation
Efing, Matthias; Ehmann, Stefanie; Kampkötter, Patrick; … - 2024
Persistent link: https://www.econbiz.de, ebvufind01.dmz1.zbw.eu/10015130472
Saved in:
Cover Image
Dynamic contracting with many agents
Biais, Bruno; Gersbach, Hans; Rochet, Jean-Charles; … - 2024
Persistent link: https://www.econbiz.de, ebvufind01.dmz1.zbw.eu/10015410335
Saved in:
Cover Image
How do business associations support contract enforcement? : evidence from Hungary
Mike, Károly; Boza, István; Molnár, Gábor Tamás - In: Annals of public and cooperative economics 95 (2024) 4, pp. 1021-1060
Persistent link: https://www.econbiz.de, ebvufind01.dmz1.zbw.eu/10015154282
Saved in:
Cover Image
Competition with exclusive contracts in vertically related markets : an equilibrium non-existence result
Schutz, Nicolas - In: International journal of industrial organization 96 (2024), pp. 1-15
Persistent link: https://www.econbiz.de, ebvufind01.dmz1.zbw.eu/10015063619
Saved in:
Cover Image
The bonding cost in subjective performance evaluation
Mitsuhashi, Hikaru; Ohta, Yasuhiro - In: Economics letters 234 (2024), pp. 1-3
Persistent link: https://www.econbiz.de, ebvufind01.dmz1.zbw.eu/10015065773
Saved in:
Cover Image
Do taxes explain why firms rarely use performance-based malus contracts?
Niemann, Rainer; Sailer, Mariana - In: Journal of international accounting, auditing and taxation 55 (2024), pp. 1-20
Persistent link: https://www.econbiz.de, ebvufind01.dmz1.zbw.eu/10015065891
Saved in:
Cover Image
A principal-agent model for ethical AI : optimal contracts and incentives for ethical alignment
Yoo, Dae-Hyun; Giannetti, Caterina - 2024
Persistent link: https://www.econbiz.de, ebvufind01.dmz1.zbw.eu/10015085109
Saved in:
Cover Image
Incomplete incentive contracts in complex task environments : an agent-based simulation with minimal intelligence agents
Wall, Friederike - In: Journal of economic interaction and coordination 19 (2024) 3, pp. 523-552
Persistent link: https://www.econbiz.de, ebvufind01.dmz1.zbw.eu/10015097234
Saved in:
Cover Image
Exploring executive bargaining dynamics
Di Giannatale, Sonia; Curiel, Itza; Basulto, Genaro - 2024
Persistent link: https://www.econbiz.de, ebvufind01.dmz1.zbw.eu/10015050627
Saved in:
Cover Image
Screening using a menu of contracts : a structural model of lending markets
Taburet, Arthur; Polo, Alberto; Vo, Quynh Anh - 2024
Persistent link: https://www.econbiz.de, ebvufind01.dmz1.zbw.eu/10015050628
Saved in:
Cover Image
Partnership for better or for worse : keeping share tenants on the farm
DeWeaver, Mark A.; Roumasset, James Alan - 2024
Persistent link: https://www.econbiz.de, ebvufind01.dmz1.zbw.eu/10015053743
Saved in:
Cover Image
Managing Industry 4.0 supply chains with innovative and traditional products : contract cessation points and value of information
Biswas, Indranil; Gurmeet Singh; Tiwari, Sunil; Choi, … - In: European journal of operational research : EJOR 316 (2024) 2, pp. 539-555
Persistent link: https://www.econbiz.de, ebvufind01.dmz1.zbw.eu/10014574451
Saved in:
Cover Image
Relational enforcement
Achim, Peter; Knoepfle, Jan - In: Theoretical economics : TE ; an open access journal in … 19 (2024) 2, pp. 823-863
A principal incentivizes an agent to maintain compliance and to truthfully announce any breaches of compliance. Compliance is imperfectly controlled by the agent's private effort choices, is partially persistent, and is verifiable by the principal only through costly inspections. We show that in...
Persistent link: https://www.econbiz.de, ebvufind01.dmz1.zbw.eu/10014576718
Saved in:
Cover Image
Contracting over persistent information
Zhao, Wei; Mezzetti, Claudio; Renou, Ludovic; Tomala, … - In: Theoretical economics : TE ; an open access journal in … 19 (2024) 2, pp. 917-974
We consider a dynamic principal-agent problem, where the sole instrument the principal has to incentivize the agent is the disclosure of information. The principal aims at maximizing the (discounted) number of times the agent chooses the principal's preferred action. We show that there exists an...
Persistent link: https://www.econbiz.de, ebvufind01.dmz1.zbw.eu/10014576723
Saved in:
Cover Image
Firm size and compensation dynamics with risk aversion and persistent private information
Maideu-Morera, Gerard - 2024
Persistent link: https://www.econbiz.de, ebvufind01.dmz1.zbw.eu/10014577007
Saved in:
Cover Image
Optimal contracts and inflation targets revisited
Persson, Torsten; Tabellini, Guido Enrico - 2024
We revisit the optimal-contract approach to the design of monetary institutions, in the light of the Zero Lower Bound (ZLB) on interest rates and the resort to Quantitative Easing (QE) in recent years. Four of our lessons have not yet been incorporated in the practices of inflation targeting...
Persistent link: https://www.econbiz.de, ebvufind01.dmz1.zbw.eu/10014551881
Saved in:
Cover Image
Incentive design for reference-dependent preferences
Gonzalez Jimenez, Victor H. - In: Journal of economic behavior & organization 221 (2024), pp. 493-518
Persistent link: https://www.econbiz.de, ebvufind01.dmz1.zbw.eu/10014553209
Saved in:
Cover Image
Trust and complexity in vertical relationships
Calzolari, Giacomo; Felli, Leonardo; Koenen, Johannes; … - 2024
We investigate the role of mutual trust in long-term vertical relationships involving trades of complex goods. High complexity is associated with high contract incompleteness and hence the increased relevance of trust-based relational contracts. Contrary to expectations, we find that changes in...
Persistent link: https://www.econbiz.de, ebvufind01.dmz1.zbw.eu/10014556693
Saved in:
Cover Image
Contractual chains
Watson, Joel - In: Econometrica : journal of the Econometric Society, an … 92 (2024) 5, pp. 1735-1774
Persistent link: https://www.econbiz.de, ebvufind01.dmz1.zbw.eu/10015117851
Saved in:
Cover Image
Ambiguous contracts
Dütting, Paul; Feldman, Michal; Peretz, Daniel; … - In: Econometrica : journal of the Econometric Society, an … 92 (2024) 6, pp. 1967-1992
Persistent link: https://www.econbiz.de, ebvufind01.dmz1.zbw.eu/10015117872
Saved in:
Cover Image
Show your hand : the impacts of fair pricing requirements in procurement contracting
Nathan, Brad - In: Journal of accounting research 62 (2024) 4, pp. 1405-1448
Persistent link: https://www.econbiz.de, ebvufind01.dmz1.zbw.eu/10015123490
Saved in:
Cover Image
The agency costs of investment opportunities and debt contracting : evidence from exogenous shocks to government spending
Callen, Jeffrey L.; Chy, Mahfuz - In: Journal of business finance & accounting : JBFA 51 (2024) 7/8, pp. 2122-2152
Persistent link: https://www.econbiz.de, ebvufind01.dmz1.zbw.eu/10015127410
Saved in:
Cover Image
Ripe for contracts? : estimating the impact of an avocado producer organization contract farming intervention
Kollenda, Philipp; Brals, Daniella; Kabubo-Mariara, Jane; … - In: Agricultural economics : the journal of the … 55 (2024) 5, pp. 758-783
Persistent link: https://www.econbiz.de, ebvufind01.dmz1.zbw.eu/10015133216
Saved in:
Cover Image
Complete contracts under incomplete information
Curello, Gregorio; Lyu, Qianjun; Zhang, Yimeng - 2024
We study a moral hazard model in which the output is stochastically determined by both the agent's hidden effort and an uncertain state of the world. We investigate how the contractibility of the ex-post realization of the state affects the principal's incentive to provide information. While...
Persistent link: https://www.econbiz.de, ebvufind01.dmz1.zbw.eu/10015135462
Saved in:
  • 1
  • 2
  • 3
  • 4
  • 5
  • 6
  • 7
  • 8
  • 9
  • 10
  • 11
  • Next
  • Last
A service of the
zbw
  • Sitemap
  • Plain language
  • Accessibility
  • Contact us
  • Imprint
  • Privacy

Loading...