Grass, D., Wrzaczek, S., Caulkins, J. P., Feichtinger, G., Hartl, R. F., Kort, P. M., Kuhn, M., Fürnkranz-Prskawetz, A., Sanchez Romero, M., & Seidl, A. (2024). Riding the waves from epidemic to endemic: Viral mutations, immunological change and policy responses. Theoretical Population Biology, 156, 46–65. https://doi.org/10.1016/j.tpb.2024.02.002 ( reposiTUm)

Caulkins, J. P., Grass, D., Feichtinger, G., Hartl, R. F., Kort, P. M., Kuhn, M., Fürnkranz-Prskawetz, A., Sánchez Romero, M., Seidl, A., & Wrzaczek, S. (2023). The hammer and the jab: Are COVID-19 lockdowns and vaccinations complements or substitutes? European Journal of Operational Research, 311(1), 233–250. https://doi.org/10.1016/j.ejor.2023.04.033 ( reposiTUm)

Feichtinger, G., Hartl, R. F., Kort, P. M., Seidl, A., & Wrzaczek, S. (2022). Asymmetric Information in a Capital Accumulation Differential Game with Spillover and Learning Effects. Journal of Optimization Theory and Applications, 194(3), 878–895. https://doi.org/10.1007/s10957-022-02054-7 ( reposiTUm)

Caulkins, J. P., Grass, D., Hartl, R. F., Kort, P. M., Fürnkranz-Prskawetz, A., Seidl, A., & Wrzaczek, S. (2021). The optimal lockdown intensity for COVID-19. Journal of Mathematical Economics, 93(102489), 102489. https://doi.org/10.1016/j.jmateco.2021.102489 ( reposiTUm)

Caulkins, J. P., Grass, D., Feichtinger, G., Hartl, R., Kort, P. M., Fürnkranz-Prskawetz, A., Seidl, A., & Wrzaczek, S. (2021). Schwedischer Weg oder chinesisches Modell? Demografische Forschung: aus erster Hand, 18(1. Quartal), 5–5. http://hdl.handle.net/20.500.12708/138447 ( reposiTUm)

Caulkins, J., Grass, D., Feichtinger, G., Hartl, R., Kort, P. M., Prskawetz, A., Seidl, A., & Wrzaczek, S. (2020). How long should the COVID-19 lockdown continue? PLoS ONE, 15(12), e0243413. https://doi.org/10.1371/journal.pone.0243413 ( reposiTUm)

Chenavaz, R. Y., Feichtinger, G., Hartl, R. F., & Kort, P. M. (2020). Modeling the impact of product quality on dynamic pricing and advertising policies. European Journal of Operational Research, 284(3), 990–1001. https://doi.org/10.1016/j.ejor.2020.01.035 ( reposiTUm)

Caulkins, J. P., Feichtinger, G., Grass, D., Hartl, R. F., Kort, P. M., & Seidl, A. (2017). Interaction of Pricing, Advertising and Experience Quality: A Dynamic Analysis. European Journal of Operational Research, 256(3), 877–885. https://doi.org/10.1016/j.ejor.2016.06.056 ( reposiTUm)

El Ouardighi, F., Feichtinger, G., Grass, D., Hartl, R. F., & Kort, P. M. (2016). Advertising and Quality-Dependent Word-of-Mouth in a Contagion Sales Model. Journal of Optimization Theory and Applications, 170(1), 323–342. https://doi.org/10.1007/s10957-015-0855-0 ( reposiTUm)

El Ouardighi, F., Feichtinger, G., Grass, D., Hartl, R., & Kort, P. M. (2016). Autonomous and advertising-dependent “word of mouth” under costly dynamic pricing. European Journal of Operational Research, 251(3), 860–872. https://doi.org/10.1016/j.ejor.2015.11.035 ( reposiTUm)

Caulkins, J. P., Feichtinger, G., Grass, D., Hartl, R. F., Kort, P. M., & Seidl, A. (2015). Capital stock management during a recession that freezes credit markets. Journal of Economic Behavior and Organization, 116, 1–14. https://doi.org/10.1016/j.jebo.2015.02.023 ( reposiTUm)

Caulkins, J. P., Feichtinger, G., Grass, D., Hartl, R. F., Kort, P. M., & Seidl, A. (2015). Skiba Points in Free End-time Problems. Journal of Economic Dynamics and Control, 51, 404–419. https://doi.org/10.1016/j.jedc.2014.11.003 ( reposiTUm)

Caulkins, J. P., Feichtinger, G., Grass, D., Hartl, R. F., Kort, P. M., Novak, A. J., Seidl, A., & Wirl, F. (2014). A Dynamic Analysis of Schelling’s Binary Corruption Model: A Competitive Equilibrium Approach. Journal of Optimization Theory and Applications, 161(2), 608–625. https://doi.org/10.1007/s10957-013-0420-7 ( reposiTUm)

Caulkins, J. P., Feichtinger, G., Hartl, R. F., Kort, P. M., Novak, A. J., & Seidl, A. (2013). Long term implications of drug policy shifts: Anticipating and non-anticipating consumers. Annual Reviews in Control, 37(1), 105–115. https://doi.org/10.1016/j.arcontrol.2013.03.005 ( reposiTUm)

Caulkins, J. P., Feichtinger, G., Hartl, R. F., Kort, P. M., Novak, A. J., & Seidl, A. (2013). Multiple Equilibria and Indifference-Threshold Points in a Rational Addiction Model. Central European Journal of Operations Research, 21(3), 507–522. http://hdl.handle.net/20.500.12708/156121 ( reposiTUm)

Caulkins, J. P., Feichtinger, G., Grass, D., Hartl, R. F., Kort, P. M., Novak, A. J., & Seidl, A. (2013). Leading Bureaucracies to the Tipping Point: An Alternative Model of Mutliple Stable Equilbrium Levels of Corruption. European Journal of Operational Research, 225(3), 541–546. https://doi.org/10.1016/j.ejor.2012.10.026 ( reposiTUm)

Caulkins, J. P., Feichtinger, G., Grass, D., Hartl, R. F., Kort, P. M., & Seidl, A. (2013). When to make proprietary software open source. Journal of Economic Dynamics and Control, 37(6), 1182–1194. https://doi.org/10.1016/j.jedc.2013.02.009 ( reposiTUm)

Caulkins, J. P., Feichtinger, G., Hartl, R. F., Kort, P. M., Novak, A. J., & Seidl, A. (2012). Multiple Equilibria and Indifference-Threshold Points in a Rational Addiction Model. Central European Journal of Operations Research, 21(3), 507–522. https://doi.org/10.1007/s10100-012-0260-9 ( reposiTUm)

Caulkins, J. P., Feichtinger, G., Grass, D., Hartl, R. F., & Kort, P. M. (2011). Two state capital accumulation with heterogenous products: disruptive vs. non-disruptive goods. Journal of Economic Dynamics and Control, 35(4), 462–478. https://doi.org/10.1016/j.jedc.2010.09.008 ( reposiTUm)

Caulkins, J. P., Feichtinger, G., Grass, D., Hartl, R. F., Kort, P. M., & Seidl, A. (2011). Optimal pricing of a conspicuous product during a recession that freezes capital markets. Journal of Economic Dynamics and Control, 35(1), 163–174. https://doi.org/10.1016/j.jedc.2010.09.001 ( reposiTUm)

Huschto, T., Feichtinger, G., Hartl, R. F., Kort, P. M., Sager, S., & Seidl, A. (2011). Numerical solution of a conspicuous consumption model with constant control delay. Automatica, 47(9), 1868–1877. https://doi.org/10.1016/j.automatica.2011.06.004 ( reposiTUm)

Dawid, H., Dockner, E., Hartl, R. F., Haunschmied, J. L., Leopold-Wildburger, U., Luptacik, M., Mehlmann, A., Fürnkranz-Prskawetz, A., Rauner, M. S., Sorger, H., Tragler, G., & Veliov, V. (2010). Special issue in honour of Gustav Feichtinger - Gustav Feichtinger celebrates his 70-th birthday. Central European Journal of Operations Research, 18(4), 437–451. http://hdl.handle.net/20.500.12708/167624 ( reposiTUm)

Feichtinger, G., Hartl, R. F., Kort, P. M., & Veliov, V. (2008). Financially constrained capital investments: the effects of disembodied and embodied technological progress. Journal of Mathematical Economics, 44(5–6), 459–483. http://hdl.handle.net/20.500.12708/168839 ( reposiTUm)

Caulkins, J. P., Hartl, R. F., Kort, P. M., & Feichtinger, G. (2007). Explaining fashion cycles: Imitators chasing innovators in product space. Journal of Economic Dynamics and Control, 31, 1535–1556. http://hdl.handle.net/20.500.12708/168748 ( reposiTUm)

Feichtinger, G., Hartl, R. F., Kort, P. M., & Yegorov, Y. (2007). A new solution property in optimal control: the lens. Automatica, 43, 744–747. http://hdl.handle.net/20.500.12708/168749 ( reposiTUm)

Feichtinger, G., Hartl, R. F., Kort, P. M., & Veliov, V. (2006). Anticipation effects of technological progress on capital accumulation: a vintage capital approach. Journal of Economic Theory, 126, 143–164. http://hdl.handle.net/20.500.12708/171848 ( reposiTUm)

Feichtinger, G., Hartl, R. F., Kort, P. M., & Veliov, V. (2006). Capital accumulation under technological progress and learning:a vintage capital approach. European Journal of Operational Research, 172(1), 293–310. http://hdl.handle.net/20.500.12708/171847 ( reposiTUm)

Gavrila, C., Feichtinger, G., Tragler, G., Hartl, R. F., & Kort, P. M. (2005). History-dependence in a rational addiction model. Mathematical Social Sciences, 49, 273–293. http://hdl.handle.net/20.500.12708/171923 ( reposiTUm)

Gavrila, C., Caulkins, J. P., Feichtinger, G., Tragler, G., & Hartl, R. F. (2005). Managing the reputation of an award to motivate performance. Mathematical Methods of Operations Research, 61, 1–22. http://hdl.handle.net/20.500.12708/171922 ( reposiTUm)

Feichtinger, G., Hartl, R. F., Kort, P. M., & Veliov, V. (2005). Environmental policy, the porter hypothesis and the composition of capital: effects of learning and technological progress. Journal of Environmental Economics and Management, 50, 434–446. http://hdl.handle.net/20.500.12708/171921 ( reposiTUm)

Haunschmied, J. L., Feichtinger, G., Hartl, R. F., & Kort, P. M. (2005). Keeping up with the technology pace: A DNS-curve and a limit cycle in a technology investment decision problem. Journal of Economic Behavior & Organisation, 57, 509–529. http://hdl.handle.net/20.500.12708/171953 ( reposiTUm)

Hartl, R. F., Kort, P. M., & Feichtinger, G. (2004). Multiple equilibria and thresholds due to relative investment costs. Journal of Optimization Theory and Applications, 123, 49–82. http://hdl.handle.net/20.500.12708/174520 ( reposiTUm)

Feichtinger, G., Hartl, R. F., Kort, P. M., & Veliov, V. (2004). Dynamic investment behavior taking into account aging of the capital good. In Dynamical Systems and Control (pp. 379–391). Chapman & Hall/CRC. http://hdl.handle.net/20.500.12708/40544 ( reposiTUm)

Caulkins, J. P., Grass, D., Feichtinger, G., Hartl, R., Kort, P. M., Fürnkranz-Prskawetz, A., Seidl, A., & Wrzaczek, S. (2021). COVID-19 and Optimal Lockdown Strategies: The Effect of New and More Virulent Strains. In M. del C. Boado-Penas, J. Eisenberg, & S. Şahin (Eds.), Springer Actuarial (pp. 163–190). Springer. https://doi.org/10.1007/978-3-030-78334-1_9 ( reposiTUm)

Bomze, I., Dörner, K., Hartl, R. F., Leopold-Wildburger, U., Pflug, G., Rauner, M. S., Stummer, C., Tragler, G., & Wakolbinger, T. (Eds.). (2018). Emerging and Innovative OR Applications: A Special Issue in Honor of Walter J. Gutjahr (Vols. 26, 2). Springer Verlag. http://hdl.handle.net/20.500.12708/24698 ( reposiTUm)

Hartl, R. F., Leopold-Wildburger, U., Rauner, M. S., Sorger, G., Tragler, G., & Veliov, V. (Eds.). (2010). Special Issue in Honor of Gustav Feichtinger. Springer Verlag. http://hdl.handle.net/20.500.12708/23259 ( reposiTUm)

Caulkins, J. P., Grass, D., Feichtinger, G., Hartl, R., Kort, P. M., Fürnkranz-Prskawetz, A., Seidl, A., & Wrzaczek, S. (2021). COVID-19 and optimal lockdown strategies: The effect of new and more virulent strains. NOeG Annual Meeting 2021 (online), University of Innsbruck, Austria. http://hdl.handle.net/20.500.12708/123256 ( reposiTUm)

Caulkins, J. P., Feichtinger, G., Grass, D., Hartl, R. F., Kort, P. M., & Seidl, A. (2010). Pricing a Conspicuous Product During a Recession. Universität Graz, Graz, Austria. http://hdl.handle.net/20.500.12708/119542 ( reposiTUm)

Caulkins, J. P., Feichtinger, G., Grass, D., Hartl, R. F., Kort, P. M., & Seidl, A. (2010). Pricing a Conspicuous Product in Recession Times. 11th Workshop on Optimal Control, Dynamic Games and Nonlinear Dynamics, Amsterdam, EU. http://hdl.handle.net/20.500.12708/119541 ( reposiTUm)

Caulkins, J. P., Grass, D., Feichtinger, G., Hartl, R. F., Kort, P. M., Fürnkranz-Prskawetz, A., Seidl, A., & Wrzaczek, S. (2021). COVID-19 and optimal lockdown strategies: The effect of new and more virulent strains. (No. 01). http://hdl.handle.net/20.500.12708/137585 ( reposiTUm)

Caulkins, J. P., Grass, D., Feichtinger, G., Hartl, R., Kort, P. M., Fürnkranz-Prskawetz, A., Seidl, A., & Wrzaczek, S. (2021). COVID-19 and optimal lockdown strategies: The effect of new and more virulent strains (ECON WPS 02/2021). Research Unit in Economics, Institute of Statistics and Mathematical Methods in Economics, TU Wien. http://hdl.handle.net/20.500.12708/40299 ( reposiTUm)

Caulkins, J. P., Grass, D., Feichtinger, G., Hartl, R. F., Kort, P. M., Fürnkranz-Prskawetz, A., Seidl, A., & Wrzaczek, S. (2020). The optimal lockdown intensity for COVID-19 (No. 11). http://hdl.handle.net/20.500.12708/139979 ( reposiTUm)

Caulkins, J. P., Grass, D., Feichtinger, G., Hartl, R. F., Kort, P. M., Fürnkranz-Prskawetz, A., Seidl, A., & Wrzaczek, S. (2020). How Long Should the COVID-19 Lockdown Continue? (No. 10). http://hdl.handle.net/20.500.12708/140527 ( reposiTUm)

Feichtinger, G., Seidl, A., Grass, D., Caulkins, J. P., Hartl, R. F., & Kort, P. M. (2013). Capital stock management during a recession that freezes credit markets. http://hdl.handle.net/20.500.12708/37904 ( reposiTUm)

Seidl, A., Feichtinger, G., Huschto, T., Hartl, R. F., Kort, P. M., & Sager, S. (2010). Numerical Solution of a Conspicuous Consumption Model with Constant Control Delay. Research Report 2010-11 (No. 11). http://hdl.handle.net/20.500.12708/36611 ( reposiTUm)

Feichtinger, G., Hartl, R. F., Kort, P. M., & Veliov, V. (2006). Financially constrained capital investments: the effects of disembodied and embodied technological progress. http://hdl.handle.net/20.500.12708/31731 ( reposiTUm)