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Azacis, Helmuts ORCID: https://orcid.org/0000-0002-6061-2100 and Collie, David ORCID: https://orcid.org/0000-0002-3132-648X 2025. The non-equivalence of import tariffs and export taxes in trade wars: Ad Valorem vs specific trade taxes. Canadian Journal of Economics / Revue Canadienne d'Économique
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Collie, David R. ORCID: https://orcid.org/0000-0002-3132-648X 2022. CRRA utility and the sustainability of cooperation in infinitely-repeated games. Economics Letters 221 , 110897. 10.1016/j.econlet.2022.110897
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Azacis, Helmuts ORCID: https://orcid.org/0000-0002-6061-2100 and Collie, David ORCID: https://orcid.org/0000-0002-3132-648X 2021. A general model of international tax competition with applications. Cardiff Economics Working Papers, Cardiff University. Available at: https://ideas.repec.org/p/cdf/wpaper/2021-31.html
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Collie, David R. ORCID: https://orcid.org/0000-0002-3132-648X 2020. Maximum-Revenue Tariffs versus Free Trade. Scottish Journal of Political Economy 67 (4) , pp. 442-447. 10.1111/sjpe.12245
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Azacis, Helmuts ORCID: https://orcid.org/0000-0002-6061-2100 and Collie, David R. ORCID: https://orcid.org/0000-0002-3132-648X 2020. The non-equivalence of import tariffs and export taxes in trade wars: Ad Valorem vs specific trade taxes. Cardiff University, Cardiff Business School, Economics Section. Available at: https://ideas.repec.org/p/cdf/wpaper/2020-11.html
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Collie, David R. ORCID: https://orcid.org/0000-0002-3132-648X 2019. Taxation under oligopoly in a general equilibrium setting. Journal of Public Economic Theory 21 (4) , pp. 738-753. 10.1111/jpet.12373
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Azacis, Helmuts ORCID: https://orcid.org/0000-0002-6061-2100 and Collie, David ORCID: https://orcid.org/0000-0002-3132-648X 2018. Taxation and the sustainability of collusion: ad valorem versus specific taxes. Journal of Economics 125 (2) , pp. 173-188. 10.1007/s00712-017-0584-y
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Collie, David R. ORCID: https://orcid.org/0000-0002-3132-648X 2016. Gains from variety? Product differentiation and the possibility of losses from trade under Cournot oligopoly with free entry. Economics Letters 146 , pp. 55-58. 10.1016/j.econlet.2016.07.017
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Collie, David ORCID: https://orcid.org/0000-0002-3132-648X and Le, Vo ORCID: https://orcid.org/0000-0003-3374-9694 2015. Product differentiation, the volume of trade and profits under Cournot and Bertrand Duopoly. International Journal of the Economics of Business 22 (1) , pp. 73-86. 10.1080/13571516.2014.950476
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Azacis, Helmuts ORCID: https://orcid.org/0000-0002-6061-2100 and Collie, David ORCID: https://orcid.org/0000-0002-3132-648X 2014. Taxation and the sustainability of collusion: ad valorem versus specific taxes. [Working Paper]. Cardiff Economics Working Papers, Cardiff: Cardiff University.
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Collie, David ORCID: https://orcid.org/0000-0002-3132-648X and Norman, George 2013. Partial collusion and foreign direct investment. [Working Paper]. Cardiff Economics Working Papers, Cardiff: Cardiff University.
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Collie, David Robert ORCID: https://orcid.org/0000-0002-3132-648X 2012. Immiserizing growth and the Metzler Paradox in the Ricardian Model. International Economic Journal 26 (1) , pp. 141-154. 10.1080/10168737.2010.538429

Collie, David ORCID: https://orcid.org/0000-0002-3132-648X and Le, Vo Phuong Mai 2011. Product differentiation, the volume of trade and profits under Cournot and Bertrand duopoly. [Working Paper]. Cardiff Economics Working Papers, Cardiff: Cardiff University.
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Collie, David Robert ORCID: https://orcid.org/0000-0002-3132-648X 2011. Multilateral trade liberalisation, foreign direct investment and the volume of world trade. Economics Letters 113 (1) , pp. 47-49. 10.1016/j.econlet.2011.05.032

Collie, David Robert ORCID: https://orcid.org/0000-0002-3132-648X and Le, Vo Phuong Mai ORCID: https://orcid.org/0000-0003-3374-9694 2010. Antidumping regulations: anti-competitive and anti-export. Review of International Economics 18 (5) , pp. 796-806. 10.1111/j.1467-9396.2010.00891.x

Collie, David R. ORCID: https://orcid.org/0000-0002-3132-648X 2010. Multilateral trade liberalisation, foreign direct investment and the volume of world trade. [Working Paper]. Cardiff Economics Working Papers, Cardiff: Cardiff University.
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Collie, David Robert ORCID: https://orcid.org/0000-0002-3132-648X 2009. Auctioning immigration visas. Review of Development Economics 13 (4) , pp. 687-694. 10.1111/j.1467-9361.2009.00521.x

Azacis, Helmuts ORCID: https://orcid.org/0000-0002-6061-2100 and Collie, David Robert ORCID: https://orcid.org/0000-0002-3132-648X 2009. The optimality of optimal punishments in Cournot supergames. Economics Letters 105 (1) , pp. 56-57. 10.1016/j.econlet.2006.11.025

Collie, David R. ORCID: https://orcid.org/0000-0002-3132-648X 2009. Immiserizing growth and the Metzler Paradox in the Ricardian Model. [Working Paper]. Cardiff Economics Working Papers, Cardiff: Cardiff University.
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Collie, David Robert ORCID: https://orcid.org/0000-0002-3132-648X 2009. Tacit collusion over Foreign Direct Investment under oligopoly. [Working Paper]. Cardiff Economics Working Papers, Cardiff: Cardiff University. Available at: http://business.cardiff.ac.uk/sites/default/files/...
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Collie, David Robert ORCID: https://orcid.org/0000-0002-3132-648X and Le, Vo Phuong Mai ORCID: https://orcid.org/0000-0003-3374-9694 2008. Anti-dumping regulations: anti-competitive and anti-export. [Working Paper]. Cardiff Economics Working Papers, Cardiff: Cardiff University.
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Clarke, Roger and Collie, David Robert ORCID: https://orcid.org/0000-0002-3132-648X 2008. Maximum-revenue versus Optimum-welfare Export Taxes: a delegation game. Review of International Economics 16 (5) , pp. 919-929. 10.1111/j.1467-9396.2008.00757.x

Clarke, Roger and Collie, David Robert ORCID: https://orcid.org/0000-0002-3132-648X 2008. Welfare in the Nash equilibrium in Export Taxes under Bertrand Duopoly. Bulletin of Economic Research 60 (2) , pp. 183-189. 10.1111/j.0307-3378.2008.00273.x

Collie, David Robert ORCID: https://orcid.org/0000-0002-3132-648X 2007. Migration and trade with external economies of scale. [Working Paper]. Cardiff Economics Working Papers, Cardiff: Cardiff University. Available at: http://www.business.cardiff.ac.uk/sites/default/fi...
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Collie, David Robert ORCID: https://orcid.org/0000-0002-3132-648X and Vandenbussche, H 2006. Tariffs and the Byrd Amendment. European Journal of Political Economy 22 (3) , pp. 750-758. 10.1016/j.ejpoleco.2005.07.004

Clarke, Roger and Collie, David Robert ORCID: https://orcid.org/0000-0002-3132-648X 2006. Optimum-welfare and maximum-revenue tariffs under Bertrand duopoly. Scottish journal of political economy 53 (3) , pp. 398-408. 10.1111/j.1467-9485.2006.00386.x

Collie, David Robert ORCID: https://orcid.org/0000-0002-3132-648X 2006. Tariffs and subsidies under asymmetric oligopoly: Ad valorem versus specific instruments. The Manchester School 74 (3) , pp. 314-333. 10.1111/j.1467-9957.2006.00495.x

Clarke, Roger and Collie, David Robert ORCID: https://orcid.org/0000-0002-3132-648X 2006. Export Taxes under Bertrand Duopoly. Economics Bulletin 6 (6) , pp. 1-8.

Collie, David Robert ORCID: https://orcid.org/0000-0002-3132-648X 2006. Collusion in Differentiated Duopolies with Quadratic Costs. Bulletin of Economic Research 58 (2) , pp. 151-159. 10.1111/j.0307-3378.2006.00235.x

Collie, David Robert ORCID: https://orcid.org/0000-0002-3132-648X 2005. State aid to investment and R&D. Economic Papers, vol. 231. European Commission. Available at: http://ec.europa.eu/economy_finance/publications/p...

Collie, David Robert ORCID: https://orcid.org/0000-0002-3132-648X and Vandenbussche, Hylke 2005. Can Import Tariffs Deter Outward FDI? Open Economies Review 16 (4) , pp. 341-362. 10.1007/s11079-005-4741-5

Collie, David Robert ORCID: https://orcid.org/0000-0002-3132-648X 2004. Collusion and the elasticity of demand. Economics Bulletin 12 (3) , pp. 1-6.

Collie, David ORCID: https://orcid.org/0000-0002-3132-648X and De Meza, David 2003. Comparative advantage and the pursuit of strategic trade policy. Economics Letters 81 (2) , pp. 279-283. 10.1016/S0165-1765(03)00193-9

Clarke, Roger and Collie, David Robert ORCID: https://orcid.org/0000-0002-3132-648X 2003. Product differentiation and the gains from trade under Bertrand duopoly. Canadian journal of economics/Revue canadienne d`economique 36 (3) , pp. 658-673. 10.1111/1540-5982.t01-2-00007

Collie, David Robert ORCID: https://orcid.org/0000-0002-3132-648X 2003. Mergers and Trade Policy under Oligopoly. Review of International Economics 11 (1) , pp. 55-71. 10.1111/1467-9396.00368

Collie, David Robert ORCID: https://orcid.org/0000-0002-3132-648X 2002. Trade liberalization and state aid in the European Union. Milner, Chris and Read, Robert, eds. Trade Liberalisation, Competition, and the WTO, Cheltenham: Edward Elgar Publishing, pp. 190-206.

Collie, David Robert ORCID: https://orcid.org/0000-0002-3132-648X and Hviid, M 2001. International Procurement as a Signal of Export Quality. The Economic Journal 111 (470) , pp. 374-390. 10.1111/1468-0297.00612

Collie, David Robert ORCID: https://orcid.org/0000-0002-3132-648X 2000. State aid in the European Union: The prohibition of subsidies in an integrated market. International Journal of Industrial Organization 18 (6) , pp. 867-884. 10.1016/S0167-7187(98)00051-4

Collie, David Robert ORCID: https://orcid.org/0000-0002-3132-648X, Hviid, Morten and Kendall, Toby 1999. Strategic trade policy under integrated markets. Journal of Economic Integration 14 (4) , pp. 523-553. 10.11130/jei.1999.14.4.523

Collie, David Robert ORCID: https://orcid.org/0000-0002-3132-648X and Hviid, Morten 1999. Tariffs as signals of uncompetitiveness. Review of International Economics 7 (4) , pp. 571-579. 10.1111/1467-9396.00182

Collie, David Robert ORCID: https://orcid.org/0000-0002-3132-648X and Su, Yu-Tien 1998. Trade policy and product variety: when is a VER superior to a tariff? Journal of Development Economics 55 (1) , pp. 249-255. 10.1016/S0304-3878(97)85632-5

Collie, David Robert ORCID: https://orcid.org/0000-0002-3132-648X 1998. Trade policy under Bertrand duopoly with integrated markets: the pure strategy equilibrium. Economics Letters 60 (2) , pp. 179-183. 10.1016/S0165-1765(98)00103-7

Collie, D. R. ORCID: https://orcid.org/0000-0002-3132-648X 1997. Bilateralism is good: trade blocs and strategic export subsidies. Oxford Economic Papers 49 (4) , pp. 504-520. 10.1093/oxfordjournals.oep.a028622

Collie, David Robert ORCID: https://orcid.org/0000-0002-3132-648X 1997. Delegation and strategic trade policy. International Economic Journal 11 (3) , pp. 35-46. 10.1080/10168739700000017

Collie, David Robert ORCID: https://orcid.org/0000-0002-3132-648X 1994. Endogenous timing in trade policy games: Should governments use countervailing duties? Weltwirtschaftliches Archiv 130 (1) , pp. 191-209. 10.1007/BF02706016

Collie, David Robert ORCID: https://orcid.org/0000-0002-3132-648X 1994. Strategic trade policy and retaliation. Japan and the World Economy 6 (1) , pp. 75-88. 10.1016/0922-1425(94)90039-6

Collie, David Robert ORCID: https://orcid.org/0000-0002-3132-648X and Hviid, Morten 1994. Tariffs for a foreign monopolist under incomplete information. Journal of International Economics 37 (3-4) , pp. 249-264. 10.1016/0022-1996(94)90048-5

Collie, David Robert ORCID: https://orcid.org/0000-0002-3132-648X 1993. Profit-shifting export subsidies and the sustainability of free trade. Scottish Journal of Political Economy 40 (4) , pp. 408-419. 10.1111/j.1467-9485.1993.tb00663.x

Collie, David Robert ORCID: https://orcid.org/0000-0002-3132-648X and Hviid, Morten 1993. Export subsidies as signals of competitiveness. Scandinavian Journal of Economics 95 (3) , pp. 327-339. 10.2307/3440359

Collie, David Robert ORCID: https://orcid.org/0000-0002-3132-648X 1993. Strategic trade policy under asymmetric oligopoly. European Journal of Political Economy 9 (2) , pp. 275-280. 10.1016/0176-2680(93)90022-M

Collie, David ORCID: https://orcid.org/0000-0002-3132-648X 1992. International trade and cournot equilibrium: existence, uniqueness and comparative statics. Bulletin of Economic Research 44 (1) , pp. 55-66. 10.1111/j.1467-8586.1992.tb00506.x

Collie, David Robert ORCID: https://orcid.org/0000-0002-3132-648X 1992. Export subsidies, entry deterrence and countervailing tariffs. The Manchester School 60 (2) , pp. 136-151. 10.1111/j.1467-9957.1992.tb00216.x

Collie, David Robert ORCID: https://orcid.org/0000-0002-3132-648X 1991. Optimum welfare and maximum revenue tariffs under oligopoly. Scottish Journal of Political Economy 38 (4) , pp. 398-401. 10.1111/j.1467-9485.1991.tb00327.x

Collie, David Robert ORCID: https://orcid.org/0000-0002-3132-648X 1991. Anti-dumping and countervailing duties under oligopoly. European Economic Review 35 (5) , pp. 1185-1187. 10.1016/0014-2921(91)90012-8

Collie, David Robert ORCID: https://orcid.org/0000-0002-3132-648X 1991. Export subsidies and countervailing tariffs. Journal of International Economics 31 (3-4) , pp. 309-324. 10.1016/0022-1996(91)90041-4

Collie, David Robert ORCID: https://orcid.org/0000-0002-3132-648X and De Meza, David 1986. Inadequacies of the strategic rationale of export subsidies. Economic Letters 22 (4) , pp. 369-373. 10.1016/0165-1765(86)90100-X

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