Keywords: Industrial Organization, Game Theory, Product differentiation, Environmental and natural resources economics, Ecolabels, R&D and innovation economics, General equilibrium and strategic interactions, Development, Poverty, Education, Labor Economics, Globalization, Democracy, Ownership.
PUBLICATIONS/Working papers
1) Lahmandi-Ayed, R., J-P Ponssard and D. Sevy « Efficiency of Dynamic Quantity Competition : a Remark on Markovian Equilibria », Economics Letters (1996), 50 : 213-221.
2) Lahmandi-Ayed, R. « Natural Oligopolies : a vertical differentiation model », International Economic Review (2000), 41, 4, 971- 987.
3) Lahmandi-Ayed, R. « Oligopoly Equilibria in Exchange Economies : a Limit Theorem», Economic Theory (2001), 17, 665-674.
4) Lahmandi-Ayed, R. « Efficiency in dynamic entry games : the case of quantity competition » International Game Theory Review (2001), 3, 4, 341-350.
5) Lahmandi-Ayed, R. « Taxation, Monitoring, Sanctioning », Progress in Economics Research, Albert Tavidze eds, (2003), 5, 97-110.
6) Lahmandi-Ayed, R. and M.S. Matoussi « Selection through water markets », Water Management in Developing Countries: Principles and Practice , P Koundouri, P. Pashardes, T.M. Swanson et A. Xepapadeas eds, (2003) Cheltenham: Edward Elgar.
7) Lahmandi-Ayed, R. « Finiteness Property in Vertically Differentiated Markets : a note on locally increasing and decreasing returns », Economic Theory (2004) 23, 2, 371-382.
8) Lahmandi-Ayed, R. « Dynamic Entry Games : the case of Natural Duopoly », International Game Theory Review (2006), 8, 4, 701-713.
9) Bonnisseau, JM and Lahmandi-Ayed, R. “Vertical differentiation: multiproduct strategy to face entry? », BE Journals (Topics in Theoretical Economics) (2006), 6, 1, article 15.
10) Lahmandi-Ayed, R. « Finiteness Property with vertical or horizontal differentiation : does it really matter ? », Economic Theory (2007), 33, 531-548.
11) Lahmandi-Ayed, R. "A note on quality choice with an extended Mussa and Rosen's model.", Economics Bulletin (2007), 12, 14, 1-9.
12) Bonnisseau, JM and Lahmandi-Ayed, R. “Vertical differentiation with non-uniform consumers' distribution », International Journal of Economic Theory (2007), 3, 179-190.
13) Ben Youssef , A. and Lahmandi-Ayed, R. « Eco-labelling, Competition and Environment : Endogenization of labelling criteria », Environmental and Resource Economics (2008), 41(2), 133-154.
14) Ghazzai, H. and Lahmandi-Ayed, R. “Vertical Differentiation, Social Networks and Compatibility Decisions”, BE Journals of Theoretical Economics (2009), 9, 1 (Topics), Article 20.
15) Lahmandi-Ayed, R. “Spatial differentiation, divisible consumption and the pro-competitive effect of income”, Journal of Mathematical Economics (2010), 46, 71-85.
16) Laussel, D. et Lahmandi-Ayed R., “Natural oligopolies with exogenous sunk costs: a non-Suttonian result”, Journal of Mathematical Economics 46 (2010), 844-854.
17) Cabon-Dhersin M. L. et Lahmandi-Ayed R., « R&D organization : Cooperation or Cross-Licensing », Recherches Economiques de Louvain (2011), 77 (1) : 31-52.
18) Ben El Hadj-Ben Brahim N., R. Lahmandi-Ayed et D. Laussel., « Is targeted advertising always beneficial ? », International Journal of Industrial Organization, 29 (2011): 678-689.
19) Ben El Hadj-Ben Brahim N., K. Jebsi et R. Lahmandi-Ayed, “Quality and capacity choices in a vertical differentiation model with congestion”, International Journal of Economic Theory, 8(2012): 259-275.
20) Ben El Hadj N., A. Hili et R. Lahmandi-Ayed, "Essays on consumption behaviors in a vertical differentiation model", chapter in Economics of Competition, edited by Leismuller and Schimpf, Nova Science Publishers (2013).
21) Ben El Hadj N., R. Lahmandi-Ayed et D. Laussel, "Advertising spillovers and market structure", Recherches Economiques de Louvain, (2014), 3, 80: 51-98. DOI : 10.3917/rel.803.0051
22) Hili A., R. Lahmandi-Ayed et H. Lasram, "Vertical differentiation and labor market: the differentiation principle revisited", Economics Bulletin, (2015), 35, 1.
23) Hili A., R. Lahmandi-Ayed et H. Lasram, “Differentiation, Labor market and globalization”, The Journal of International Trade and Economic Development, (2016), DOI: 10.1080/09638199.2015.1136832
24) Kahloul, A., Lahmandi‐Ayed, R., Lasram, H., & Laussel, D. “Democracy and competition: Vertical differentiation and labor in a general equilibrium model.” Journal of Public Economic Theory, (2017), 19(4), 860-874.
25) Lahmandi-Ayed, R. et D. Laussel, « When Do Imperfectly Competitive Firms Maximize Profits ? The Lessons from a Simple General Equilibrium Model with Shareholders' Voting”, Journal of Mathematical Economics, (2018), 78, 6-12.
26) Kahloul, A, R. Lahmandi-Ayed et H. Lasram « Poverty, Competition, Democracy and Ownership: a General Equilibrium model with Vertical Preferences”, Journal of Public Economic Theory (2019), 21, 1143–1178.
27) Amir, R., Cremer, H. and Lahmandi-Ayed R.. “Introduction to the thematic issue on government-provided services”, Journal of Public Economic Theory (2020), 22, 839-845.
28) Gama, A., Lahmandi-Ayed, R. and Pereira, A.E. “Entry and mergers in oligopoly with firm-specific network effects”, Economic Theory (2020), 70, 1139–1164. https://doi.org/10.1007/s00199-020-01316-7
29) Bouziri, E., H. Ghazzai et R. Lahmandi-Ayed, « International ecolabel vs. national ecolabels », Environmental Modeling and Assessment (2021) https://doi.org/10.1007/s10666-021-09755-9
30) Ghazzai, H, W. Hemissi, R. Lahmandi-Ayed & S. Mami, “A note on the role of ownership structure in a democracy: more or less competition?”, Revue d’Economie Politique (2021), 2, 249-261.
31) Lahmandi-Ayed, R., H. Lasram et D. Laussel, "Is partial privatization a solution for higher education?", Journal of Public Economic Theory (2021), 1-25. DOI: 10.1111/jpet.12531
32) Ghazzai, H. & R. Lahmandi-Ayed, « Ecolabels: Is More Information Better?”, Environmental Modeling and Assessment (2021), 26(5), 849-869. DOI: 10.1007/s10666-021-09755-9
33) Lahmandi-Ayed, R & D. Laussel, « When do privatizations have popular support? A voting model », Journal of Mathematical Economics (2022) 102633, https://doi.org/10.1016/j.jmateco.2021.102633
34) Amir, R., Ghazzai, H et R. Lahmandi-Ayed, “On the political economy of economic integration”, Social and Choice Welfare, (2022), https://doi.org/10.1007/s00355-022-01441-3.
35) Ghazzai, H, W. Hemissi, R. Lahmandi-Ayed & S. Mami, “More competition to alleviate poverty? A general equilibrium model and an empirical study”, Journal of Public Economic Theory (2023), 1-27.
36) Amir, R., A. Gama, R. Lahmandi-Ayed & K. Werner, “A one-stage model of abatement innovation in Cournot duopoly: emissions versus performance standards”, Environmental Modeling and Assessment (2023), 1-17.
37) Lahmandi-Ayed, R. & M. S. Matoussi, “Short and long term effects of water markets”, London Journal of Research in Science, Great Britain Journals Press (2023), 23(10), compilation 1.0.
38) Ghazzai, H. & R. Lahmandi-Ayed, “Globalization and Formal-Informal wage gap”, Revue Congo Challenge (2023), 5(2), 366-394.
39) Bellakhal, R., Ghazzai, H, Lahmandi-Ayed, R., “Globalization and informality: A theoretical model and an empirical study”, World Economy (2024). https://onlinelibrary.wiley.com/doi/10.1111/twec.13571
40) Lahmandi-Ayed, R. & D. Laussel, “Random Informative Advertising with Vertically Differentiated Products”, Games (2024), 15, 10. https://doi.org/10.3390/g15020010
41) Ghazzai, H, W. Hemissi, R. Lahmandi-Ayed & S. Mami, “Competition and poverty: does the competition type matter?”, Revue d’Economie Politique (2024), 134(4), 611-630.
Working Papers
42) Hili A., R. El Ferktaji & R. Lahmandi-Ayed, "Profit Sharing in unionized firms".
43) Hili A., MA. Diaye & R. Lahmandi-Ayed, "Employee ownership: does firms' size matter?"
44) Lahmandi-Ayed, R. & D. Malouche, « More research and development for better education in the future ?”