Publications
by alumni of
Institut für Stochastik und Wirtschaftsmathematik
Technische Universität Wien
Wien, Austria
(Institute of Statistical and Mathematical Methods in Economics, Vienna University of Technology)
These are publications listed in RePEc written by alumni of the above institution who are registered with the RePEc Author Service and listed in the RePEc Genealogy. List of alumni. For a list of publications by current members of the department, see here. Register yourself.This page is updated in the first days of each month.
| Working papers | Journal articles | Books | Chapters |
Working papers
Undated material is listed at the end2023
- Christopher Loewald & Nic Spearman Andreas Wrgtter, 2023. "Less sacrifice from collective to competitive price coordination in the South African economy," Working Papers 11049, South African Reserve Bank.
2021
- Smirnykh, Larisa & Woergoetter, Andreas, 2021.
"Regional convergence in CEE before and after the Global Financial Crisis,"
IHS Working Paper Series
33, Institute for Advanced Studies.
- Smirnykh, Larisa & Wörgötter, Andreas, 2021. "Regional convergence in CEE before and after the Global Financial Crisis," ECON WPS - Working Papers in Economic Theory and Policy 03/2021, TU Wien, Institute of Statistics and Mathematical Methods in Economics, Economics Research Unit.
- Miao, Guannan & Woergoetter, Andreas, 2021. "Economic Consequences of Landlockedness - What Makes a Difference?," IHS Working Paper Series 35, Institute for Advanced Studies.
- Christopher Loewald & Konstantin Makrelov & Andreas Wrgtter, 2021. "Addressing low labour utilisation in South Africa," Working Papers 11008, South African Reserve Bank.
2020
- Wörgötter, Andreas & Brixiova Schwidrowski, Zuzana, 2020. "Monetary Unions of Small Currencies and a Dominating Member: What Policies Work Best for Benefiting from the CMA?," IZA Policy Papers 163, Institute of Labor Economics (IZA).
2019
- Andreas Wrgtter & Sihle Nomdebevana, 2019. "Aggregate and sectoral publicprivate remuneration patterns in South Africa," Working Papers 9382, South African Reserve Bank.
- Loewald, Christopher & Wörgötter, Andreas, 2019. "Do monetary unions dream of structural reforms?," ECON WPS - Working Papers in Economic Theory and Policy 01/2019, TU Wien, Institute of Statistics and Mathematical Methods in Economics, Economics Research Unit.
2018
- Andreas Wrgtter & Sihle Nomdebevana, 2018.
"Aggregate publicprivate remuneration patterns in South Africa,"
Working Papers
8421, South African Reserve Bank.
- Andreas Wörgötter & Sihle Nomdebevana, 2020. "Aggregate Public-Private Remuneration Patterns in South Africa," Atlantic Economic Journal, Springer;International Atlantic Economic Society, vol. 48(4), pages 461-474, December.
- Wörgötter, Andreas & Nomdebevana, Sihle, 2018. "Aggregate public-private remuneration patterns in South Africa," ECON WPS - Working Papers in Economic Theory and Policy 02/2018, TU Wien, Institute of Statistics and Mathematical Methods in Economics, Economics Research Unit.
- Andreas Wrgtter & Sihle Nomdebevana, 2018. "Aggregate publicprivate remuneration patterns in South Africa," Working Papers 8620, South African Reserve Bank.
2016
- Smirnych, L. I. & Wörgötter, Andreas, 2016. "The importance of institutional and organizational characteristics for the use of fixed-term and agency work contracts in Russia," ECON WPS - Working Papers in Economic Theory and Policy 09/2016, TU Wien, Institute of Statistics and Mathematical Methods in Economics, Economics Research Unit.
2015
- Lilas Demmou & Andreas Wörgötter, 2015. "Boosting Productivity in Russia: Skills, Education and Innovation," OECD Economics Department Working Papers 1189, OECD Publishing.
- Larisa Smirnykh & Andreas Wörgötter, 2015. "Non-standard contracts, flexibility and employment adjustment: Empirical evidence from Russian establishment data," OECD Economics Department Working Papers 1253, OECD Publishing.
- Rauf Gönenç & Béatrice Guérard & Isabelle Hassler & Andreas Wörgötter, 2015. "Austria's separate gender roles model was popular in the past, but is becoming a constraint for comprehensive wellbeing," OECD Economics Department Working Papers 1272, OECD Publishing.
2013
- Wörgötter, Andreas & Coricelli, Fabrizio & Ravasan, Farshad R, 2013. "The origins of the German current account surplus: Unbalanced productivity growth and structural change," CEPR Discussion Papers 9527, C.E.P.R. Discussion Papers.
- Smirnykh, Larisa & Wörgötter, Andreas, 2013.
"Why Do Russian Firms Use Fixed-Term and Agency Work Contracts?,"
IZA Policy Papers
54, Institute of Labor Economics (IZA).
- Larisa Smirnykh & Andreas Wörgötter, 2013. "Why do Russian Firms Use Fixed-Term and Agency Work Contracts?," OECD Economics Department Working Papers 1014, OECD Publishing.
- Fidrmuc, Jarko & Klein, Caroline & Price, Robert & Wörgötter, Andreas, 2013.
"Slovakia: A Catching Up Euro Area Member In and Out of the Crisis,"
IZA Policy Papers
55, Institute of Labor Economics (IZA).
- Jarko Fidrmuc & Caroline Klein & Robert Price & Andreas Wörgötter, 2013. "Slovakia: A Catching Up Euro Area Member In and Out of the Crisis," OECD Economics Department Working Papers 1019, OECD Publishing.
- Caroline Klein & Robert Price & Andreas Wörgötter, 2013. "Improving the Fiscal Framework to Enhance Growth in an Era of Fiscal Consolidation in Slovakia," OECD Economics Department Working Papers 1018, OECD Publishing.
- Rauf Gönenç & Oliver Röhn & Christian Beer & Andreas Wörgötter, 2013. "Responding to Key Well-being Challenges in Austria," OECD Economics Department Working Papers 1080, OECD Publishing.
2012
- Fabrizio Coricelli & Andreas Wörgötter, 2012. "Structural Change and the Current Account: The Case of Germany," OECD Economics Department Working Papers 940, OECD Publishing.
2011
- Robert Price & Andreas Wörgötter, 2011. "Estonia: Making the Most of Globalisation," OECD Economics Department Working Papers 876, OECD Publishing.
- Rauf Gönenç & Maria M. Hofmarcher & Andreas Wörgötter, 2011. "Reforming Austria's Highly Regarded but Costly Health System," OECD Economics Department Working Papers 895, OECD Publishing.
- Andreas Wörgötter, 2011. "FIW-PB 11 Ungleichgewichte im Eurogebiet: Eine Geschichte in zwei Ländern," FIW Policy Brief series 011, FIW.
2010
- Isabell Koske & Andreas Wörgötter, 2010. "Germany's Growth Potential, Structural Reforms and Global Imbalances," OECD Economics Department Working Papers 780, OECD Publishing.
- Thomas Fent & Belinda Aparicio Diaz & Alexia Prskawetz, 2010.
"Family Policies in the Context of Low Fertility and Social Structure,"
VID Working Papers
1102, Vienna Institute of Demography (VID) of the Austrian Academy of Sciences in Vienna.
- Thomas Fent & Alexia Prskawetz & Belinda Aparicio Diaz, 2013. "Family policies in the context of low fertility and social structure," Demographic Research, Max Planck Institute for Demographic Research, Rostock, Germany, vol. 29(37), pages 963-998.
2009
- Jens Matthias Arnold & Peter Hoeller & Margaret Morgan & Andreas Wörgötter, 2009. "Structural Reforms and the Benefits of the Enlarged EU Internal Market: Much Achieved and Much to Do," OECD Economics Department Working Papers 694, OECD Publishing.
- Zuzana Brixiova & Laura Vartia & Andreas Wörgötter, 2009.
"Capital Inflows, Household Debt and the Boom-bust Cycle in Estonia,"
OECD Economics Department Working Papers
700, OECD Publishing.
- Zuzana Brixiova & Laura Vartia & Andreas Woergoetter, 2009. "Capital Inflows, Household Debt And The Boom Bust Cycle In Estonia," William Davidson Institute Working Papers Series wp965, William Davidson Institute at the University of Michigan.
- Zuzana Brixiova & Margaret Morgan & Andreas Wörgötter, 2009. "Estonia and Euro Adoption: Small Country Challenges of Joining EMU," OECD Economics Department Working Papers 728, OECD Publishing.
- Alexia Prskawetz & Barbara Zagaglia & Thomas Fent & Vegard Skirbekk, 2009.
"Decomposing the Change in Labour Force Indicators over Time,"
European Demographic Research Papers
0401, Vienna Institute of Demography (VID) of the Austrian Academy of Sciences in Vienna.
- Alexia Prskawetz & Vegard Skirbekk & Thomas Fent & Barbara Zagaglia, 2005. "Decomposing the change in labour force indicators over time," Demographic Research, Max Planck Institute for Demographic Research, Rostock, Germany, vol. 13(7), pages 163-188.
2007
- Matovic, Violeta & Wörgötter, Andreas, 2007. "How does the Economy Matter for Terrorism," MPRA Paper 32968, University Library of Munich, Germany, revised 2007.
- Biehl, Kai & Fent, Thomas, 2007. "Vorausschätzungen für die Entwicklung der Gesamtbevölkerung und der Beschäftigung in Österreich bis 2035 [Projections of the Development of Population and Employment in Austria until 2035]," MPRA Paper 2877, University Library of Munich, Germany.
2006
- Andrés Fuentes & Eckhard Wurzel & Andreas Wörgötter, 2006. "Reforming Federal Fiscal Relations in Austria," OECD Economics Department Working Papers 474, OECD Publishing.
- Fent, Thomas, 2006. "Collective Social Dynamics and Social Norms," MPRA Paper 2841, University Library of Munich, Germany.
2003
- Vodopivec, Milan & Worgotter, Andreas & Raju, Dhushyanth, 2003. "Unemployment benefit systems in Central and Eastern Europe : a review of the 1990s," Social Protection Discussion Papers and Notes 26307, The World Bank.
2002
- Jens Høj & Andreas Wörgötter, 2002. "Encouraging Environmentally Sustainable Growth in Austria," OECD Economics Department Working Papers 322, OECD Publishing.
2001
- Paul O'Brien & David Carey & Jens Høj & Andreas Woergoetter, 2001. "Encouraging Environmentally Sustainable Growth in Belgium," OECD Economics Department Working Papers 300, OECD Publishing.
2000
- MacKellar, Landis & Woergoetter, Andreas & Woerz, Julia, 2000. "Economic Development Problems of Landlocked Countries," Transition Economics Series 14, Institute for Advanced Studies.
- Smirnych, Larissa & Woergoetter, Andreas, 2000. "Einkommen, Geschlecht und Arbeitsplatzwechsel in Russland 1998. Earnings, Gender, and Mobility in the RF 1995-1998," Transition Economics Series 15, Institute for Advanced Studies.
- Fent, Thomas, 2000. "Wissen gewinnen und gewinnen durch Wissen [Gaining knowledge and winning with knowledge]," MPRA Paper 2838, University Library of Munich, Germany.
1999
- Fent, Thomas, 1999. "Adaptive agents in the House of Quality," MPRA Paper 2835, University Library of Munich, Germany.
- Fent, Thomas, 1999. "Using Genetics Based Machine Learning to find Strategies for Product Placement in a dynamic Market," MPRA Paper 2837, University Library of Munich, Germany.
1998
- Huber, Peter & Wörgötter, Andreas, 1998. "Political Survival or Entrepreneurial Development? Observations on Russian Business Networks," MPRA Paper 20412, University Library of Munich, Germany.
1997
- Huber, Peter & Nagaev, Sergej & Woergoetter, Andreas, 1997. "The Changes in Location of Russian Industry in Early Transition 1987-1993," East European Series 42, Institute for Advanced Studies.
- Fidrmuc, Jarko & Grozea-Helmenstein, Daniela & Wörgötter, Andreas, 1997. "Intra-Industry Trade Dynamics in the East-West Relations," East European Series 52, Institute for Advanced Studies.
- Peter Huber & Andreas Worgotter, 1997. "Local Labour Market Dynamics in the Czech and Slovak Republics," William Davidson Institute Working Papers Series 121, William Davidson Institute at the University of Michigan.
1996
- Huber, Peter & Nagaev, sergei & Wörgötter, Andreas, 1996. "The Relocation of Russian Industry 1987-1993," MPRA Paper 20534, University Library of Munich, Germany.
1994
- Halushka, Andrij & Savluk, Sergei & Wörgötter, Andreas, 1994. "Ukrainian Hyperinflation: History, Analysis, Recommendations," East European Series 10, Institute for Advanced Studies.
- Grigoriev, Serguei E. & Nagaev, Serguei A. & Wörgötter, Andreas, 1994. "Regional Economic Development and Political Attitudes of the Population of Russia: Results for the December 1993 Federal Elections," East European Series 15, Institute for Advanced Studies.
- Titkov, Vladimir & Wörgötter, Andreas, 1994. "Inflation in the Russian Federation: Dynamics and Causes," East European Series 5, Institute for Advanced Studies.
- Semenova, Irina S. & Wörgötter, Andreas, 1994. "Test of the Monetary Model for the Case of Russia, 1992-1993 and Germany 1991-1993," East European Series 9, Institute for Advanced Studies.
Undated
- Thomas Fent, "undated". "Macro And Micro Dynamics In An Artificial Society: An Agent Based Approach," Modeling, Computing, and Mastering Complexity 2003 06, Society for Computational Economics.
Journal articles
2022
- Thomas Fent, 2022. "Jakub Bijak (ed.): Towards Bayesian Model-Based Demography: Agency, Complexity and Uncertainty in Migration Studies," European Journal of Population, Springer;European Association for Population Studies, vol. 38(5), pages 1347-1349, December.
2020
- Andreas Wörgötter & Sihle Nomdebevana, 2020.
"Aggregate Public-Private Remuneration Patterns in South Africa,"
Atlantic Economic Journal, Springer;International Atlantic Economic Society, vol. 48(4), pages 461-474, December.
- Wörgötter, Andreas & Nomdebevana, Sihle, 2018. "Aggregate public-private remuneration patterns in South Africa," ECON WPS - Working Papers in Economic Theory and Policy 02/2018, TU Wien, Institute of Statistics and Mathematical Methods in Economics, Economics Research Unit.
- Andreas Wrgtter & Sihle Nomdebevana, 2018. "Aggregate publicprivate remuneration patterns in South Africa," Working Papers 8421, South African Reserve Bank.
- Andreas Wrgtter & Sihle Nomdebevana, 2018. "Aggregate publicprivate remuneration patterns in South Africa," Working Papers 8620, South African Reserve Bank.
2019
- Smirnykh, Larisa & Wörgötter, Andreas, 2019. "The importance of institutional and organizational characteristics for the use of fixed-term contracts in Russia," Journal of East European Management Studies, Nomos Verlagsgesellschaft mbH & Co. KG, vol. 24(1), pages 89-121.
- Wim De Mulder & Bernhard Rengs & Geert Molenberghs & Thomas Fent & Geert Verbeke, 2019. "Extending Gaussian process emulation using cluster analysis and artificial neural networks to fit big training sets," Journal of Simulation, Taylor & Francis Journals, vol. 13(3), pages 195-208, July.
2017
- Thomas Fent, 2017. "André Grow and Jan Van Bavel (eds): Agent-Based Modelling in Population Studies: Concepts, Methods, and Applications," European Journal of Population, Springer;European Association for Population Studies, vol. 33(3), pages 437-439, July.
2014
- Fidrmuc, Jarko & Wörgötter, Andreas, 2014. "Euro Membership, Foreign Banks And Credit Developments During The Financial Crisis In Slovakia: A Case Study," Review of Agricultural and Applied Economics (RAAE), Faculty of Economics and Management, Slovak Agricultural University in Nitra, vol. 17(01), March.
2013
- Jarko Fidrmuc & Andreas Wörgötter, 2013. "Slovakia: The Consequences of Joining the Euro Aea before the Crisis for a Small Catching-up Economy," CESifo Forum, ifo Institute - Leibniz Institute for Economic Research at the University of Munich, vol. 14(01), pages 57-63, May.
- Thomas Fent & Alexia Prskawetz & Belinda Aparicio Diaz, 2013.
"Family policies in the context of low fertility and social structure,"
Demographic Research, Max Planck Institute for Demographic Research, Rostock, Germany, vol. 29(37), pages 963-998.
- Thomas Fent & Belinda Aparicio Diaz & Alexia Prskawetz, 2010. "Family Policies in the Context of Low Fertility and Social Structure," VID Working Papers 1102, Vienna Institute of Demography (VID) of the Austrian Academy of Sciences in Vienna.
2011
- Jens Matthias Arnold & Andreas Worgotter, 2011. "Structural reforms and the benefits of the enlarged EU internal market: still much to be gained," Applied Economics Letters, Taylor & Francis Journals, vol. 18(13), pages 1231-1235.
- Belinda Diaz & Thomas Fent & Alexia Prskawetz & Laura Bernardi, 2011. "Transition to Parenthood: The Role of Social Interaction and Endogenous Networks," Demography, Springer;Population Association of America (PAA), vol. 48(2), pages 559-579, May.
2010
- Brixiova, Zuzana & Vartia, Laura & Wörgötter, Andreas, 2010. "Capital flows and the boom-bust cycle: The case of Estonia," Economic Systems, Elsevier, vol. 34(1), pages 55-72, March.
- Zuzana Brixiova & Margaret H. Morgan & Andreas Wörgötter, 2010. "On The Road to Euro: How Synchronized Is Estonia with the Euro zone?," European Journal of Comparative Economics, Cattaneo University (LIUC), vol. 7(1), pages 203-227, June.
2008
- Thomas Fent, 2008. "Department of Economic and Social Affairs, Population Division, United Nations Expert Group Meeting on Social and Economic Implications of Changing Population Age Structures," European Journal of Population, Springer;European Association for Population Studies, vol. 24(4), pages 451-452, December.
2007
- Alexia Prskawetz & Thomas Fent, 2007. "Workforce Ageing And The Substitution Of Labour: The Role Of Supply And Demand Of Labour In Austria," Metroeconomica, Wiley Blackwell, vol. 58(1), pages 95-126, February.
- Francesco Billari & Alexia Prskawetz & Thomas Fent & Belinda Aparicio Diaz, 2007. "The "Wedding-Ring"," Demographic Research, Max Planck Institute for Demographic Research, Rostock, Germany, vol. 17(3), pages 59-82.
- Thomas Fent & Patrick Groeber & Frank Schweitzer, 2007. "Coexistence Of Social Norms Based On In- And Out-Group Interactions," Advances in Complex Systems (ACS), World Scientific Publishing Co. Pte. Ltd., vol. 10(02), pages 271-286.
2005
- Milan Vodopivec & Andreas Wörgötter & Dhushyanth Raju, 2005. "Unemployment Benefit Systems in Central and Eastern Europe: A Review of the 1990s1," Comparative Economic Studies, Palgrave Macmillan;Association for Comparative Economic Studies, vol. 47(4), pages 615-651, December.
- Alexia Prskawetz & Vegard Skirbekk & Thomas Fent & Barbara Zagaglia, 2005.
"Decomposing the change in labour force indicators over time,"
Demographic Research, Max Planck Institute for Demographic Research, Rostock, Germany, vol. 13(7), pages 163-188.
- Alexia Prskawetz & Barbara Zagaglia & Thomas Fent & Vegard Skirbekk, 2009. "Decomposing the Change in Labour Force Indicators over Time," European Demographic Research Papers 0401, Vienna Institute of Demography (VID) of the Austrian Academy of Sciences in Vienna.
2004
- Francesco C. Billari & Thomas Fent & Alexia Prskawetz & Jürgen Scheffran, 2004. "Workshop on "Agent-Based Computational Modelling. An Instrument for Analysing Complex Adaptive Systems in Demography, Economics and Environment" at the Vienna Institute of Demography, Decemb," Vienna Yearbook of Population Research, Vienna Institute of Demography (VID) of the Austrian Academy of Sciences in Vienna, vol. 2(1), pages 338-340.
2003
- Jarko Fidrmuc & Andreas Worgotter & Julia Worz, 2003. "Does foreign policy determine foreign trade? Cointegration analysis of exports from selected countries to the Middle East," Applied Economics, Taylor & Francis Journals, vol. 35(5), pages 565-571.
2002
- Thomas Fent & Gustav Feichtinger & Gernot Tragler, 2002. "A Dynamic Game Of Offending And Law Enforcement," International Game Theory Review (IGTR), World Scientific Publishing Co. Pte. Ltd., vol. 4(01), pages 71-89.
1999
- Jiri Vecernik & Andreas Wörgötter, 1999. "Arbeitsmarktpolitik in Ost-Mitteleuropa," Wirtschaft und Gesellschaft - WuG, Kammer für Arbeiter und Angestellte für Wien, Abteilung Wirtschaftswissenschaft und Statistik, vol. 25(4), pages 497-508.
- Jarko Fidrmuc & Daniela Grozea-Helmenstein & Andreas Wörgötter, 1999. "East-west intra-industry trade dynamics," Review of World Economics (Weltwirtschaftliches Archiv), Springer;Institut für Weltwirtschaft (Kiel Institute for the World Economy), vol. 135(2), pages 332-346, June.
1998
- Tito Boeri & Andreas Wörgötter, 1998. "Special Issue on `Long term unemployment and social assistance': Introduction," Empirical Economics, Springer, vol. 23(1/2), pages 1-3.
1997
- Helmut Hofer & Andreas Worgotter, 1997. "Regional Per Capita Income Convergence in Austria," Regional Studies, Taylor & Francis Journals, vol. 31(1), pages 1-12.
1995
- Martin Rein & Irina Tratch & Andreas Woergoetter, 1995. "Social Assets, Privatization and Industrial Restructuring in Ukraine," The Economics of Transition, The European Bank for Reconstruction and Development, vol. 3(2), pages 260-266, June.
1986
- Worgotter Andreas, 1986. "Klassenkampf im Goodwin-Konjunkturmodell: Wer gegen wen?," Journal of Economics and Statistics (Jahrbuecher fuer Nationaloekonomie und Statistik), De Gruyter, vol. 201(3), pages 222-228, March.
1984
- Rosner Peter & Tintner Gerhard & Wörgötter Andreas & Wörgötter Gabriele, 1984. "Lohnbestimmung, außenwirtschaftliche Stabilität und internationale Stagnation: Wage Determination, External Economic Stability and International Stagnation," Journal of Economics and Statistics (Jahrbuecher fuer Nationaloekonomie und Statistik), De Gruyter, vol. 199(3), pages 193-212, March.
Books
2006
- Francesco C. Billari & Thomas Fent & Alexia Prskawetz & Jürgen Scheffran (ed.), 2006. "Agent-Based Computational Modelling," Contributions to Economics, Springer, number 978-3-7908-1721-8, May.
1997
- Rein,Martin & Friedman,Barry L. & Wörgötter,Andreas (ed.), 1997. "Enterprise and Social Benefits after Communism," Cambridge Books, Cambridge University Press, number 9780521584036, June.
1993
- Helmut Frisch & Andreas Wörgötter (ed.), 1993. "Open-Economy Macroeconomics," International Economic Association Series, Palgrave Macmillan, number 978-1-349-12884-6, March.
Chapters
2014
- Felix Hüfner & Andreas Wörgötter & Caroline Klein, 2014. "The German Labor Market in the Great Recession: Lessons for Other Countries," Palgrave Macmillan Books, in: Joe Colombano & Aniket Shah (ed.), Learning from the World, chapter 6, pages 69-88, Palgrave Macmillan.
2008
- T. Fent & B. Mahlberg & A. Prskawetz, 2008. "Demographic Change and Economic Growth," Springer Books, in: Florian Kohlbacher & Cornelius Herstatt (ed.), The Silver Market Phenomenon, chapter 1, pages 3-16, Springer.
2006
- Francesco C. Billari & Thomas Fent & Alexia Prskawetz & Jürgen Scheffran, 2006. "Agent-Based Computational Modelling: An Introduction," Contributions to Economics, in: Francesco C. Billari & Thomas Fent & Alexia Prskawetz & Jürgen Scheffran (ed.), Agent-Based Computational Modelling, pages 1-16, Springer.
- Belinda Aparicio Diaz & Thomas Fent, 2006. "An Agent-Based Simulation Model of Age-at-Marriage Norms," Contributions to Economics, in: Francesco C. Billari & Thomas Fent & Alexia Prskawetz & Jürgen Scheffran (ed.), Agent-Based Computational Modelling, pages 85-116, Springer.
1997
- Peter Rosner & Thomas Url & Andreas Wörgötter, 1997. "The Austrian Pension System," Chapters, in: Martin Rein & Eskil Wadensjö (ed.), Enterprise and the Welfare State, chapter 2, pages 33-64, Edward Elgar Publishing.