Andreoni, J. (1988). Why free ride? Strategies and Learning in Public Goods Experiments. Journal of Public Economics, 37 (3), 291–304, doi: <a href="https://doi.org/10.1016/0047-2727(88)90043-6.10.1016/0047-2727(88)90043-6" target="_blank" rel="noopener noreferrer" class="text-signal-blue hover:underline">10.1016/0047-2727(88)90043-6.10.1016/0047-2727(88)90043-6</a>
Bagnoli, M., Lipman, B. L. (1992). Private provision of public goods can be efficient. Public Choice, 74 (1), 59–78, doi: <a href="https://doi.org/10.1007/BF0017521110.1007/BF00175211" target="_blank" rel="noopener noreferrer" class="text-signal-blue hover:underline">10.1007/BF0017521110.1007/BF00175211</a>
Bergstrom, T., Blume, L., & Varian, H. (1986). On the private provision of public goods. Journal of Public Economics, 29 (1), 25–49, doi:<a href="https://doi.org/10.1016/0047-2727(86)90024-110.1016/0047-2727(86)90024-1" target="_blank" rel="noopener noreferrer" class="text-signal-blue hover:underline">10.1016/0047-2727(86)90024-110.1016/0047-2727(86)90024-1</a>
Buckley, E., & Croson, R. (2006). Income and wealth heterogeneity in the voluntary provision of linear public goods. Journal of Public Economics. 90 (1), 935–955, doi: <a href="https://doi.org/10.1016/j.jpubeco.2005.06.00210.1016/j.jpubeco.2005.06.002" target="_blank" rel="noopener noreferrer" class="text-signal-blue hover:underline">10.1016/j.jpubeco.2005.06.00210.1016/j.jpubeco.2005.06.002</a>
Cornes, R., Sandler, T. (1985). The Simple Analytics of Pure Public Good Provision. Economica, 52 (205), 103-116, doi: <a href="https://doi.org/10.2307/255399410.2307/2553994" target="_blank" rel="noopener noreferrer" class="text-signal-blue hover:underline">10.2307/255399410.2307/2553994</a>
Croson, R., Fatas, E., & Neugebauer, T. (2005). Reciprocity, matching and conditional cooperation in two public goods games. Economics Letters, 87 (1), 95-101, doi: <a href="https://doi.org/10.1016/j.econlet.2004.10.00710.1016/j.econlet.2004.10.007" target="_blank" rel="noopener noreferrer" class="text-signal-blue hover:underline">10.1016/j.econlet.2004.10.00710.1016/j.econlet.2004.10.007</a>
Hofmeyr, A., Burns, J., & Visser, M. (2007). Income inequality, reciprocity and public good provision: an experimental analysis. South African Journal of Economics, 75(3), 508–520, doi: <a href="https://doi.org/10.1111/j.1813-6982.2007.00127.x10.1111/j.1813-6982.2007.00127.x" target="_blank" rel="noopener noreferrer" class="text-signal-blue hover:underline">10.1111/j.1813-6982.2007.00127.x10.1111/j.1813-6982.2007.00127.x</a>
Isaac, R. M., Walker, J.M., & Thomas, S.H. (1984). Divergent evidence on free riding: An experimental examination of possible explanations. Public Choice, 43(2), 113–149, doi: <a href="https://doi.org/10.1007/BF0014082910.1007/BF00140829" target="_blank" rel="noopener noreferrer" class="text-signal-blue hover:underline">10.1007/BF0014082910.1007/BF00140829</a>
Isaac, R., McCue, K., & Plott, Ch. (1985). Public goods provision in an experimental environment. Journal of Public Economics, 26 (1), 51 – 74, doi: <a href="https://doi.org/10.1016/0047-2727(85)90038-610.1016/0047-2727(85)90038-6" target="_blank" rel="noopener noreferrer" class="text-signal-blue hover:underline">10.1016/0047-2727(85)90038-610.1016/0047-2727(85)90038-6</a>
Kurzban, R., McCabe, K., & Smith, V. (2001). Incremental Commitment and Reciprocity in Real-Time Public goods Game. Personality and Social Psychology Bulletin, 27 (12), 1662–1673. doi: <a href="https://doi.org/10.1177/0146167201271200910.1177/01461672012712009" target="_blank" rel="noopener noreferrer" class="text-signal-blue hover:underline">10.1177/0146167201271200910.1177/01461672012712009</a>
Marwell, G., & Ames, R.E. (1979). Experiments on the Provision of Public Goods. I. Resources, Interest, Group Size, and the Free-Rider Problem. American Journal of Sociology. 84(6),1335–1360, doi: <a href="https://doi.org/10.1086/22693710.1086/226937" target="_blank" rel="noopener noreferrer" class="text-signal-blue hover:underline">10.1086/22693710.1086/226937</a>
Marwell, G., & Ames, R.E. (1980). Experiments on the Provision of Public Goods. II. Provision Points, Stakes, Experience, and the Free-Rider Problem. American Journal of Sociology. 85 (4), 926–937, doi: <a href="https://doi.org/10.1086/22709410.1086/227094" target="_blank" rel="noopener noreferrer" class="text-signal-blue hover:underline">10.1086/22709410.1086/227094</a>
McBride, M. (2004). Discrete public goods under threshold uncertainty. Journal of Public Economics, 90 (6-7), doi: <a href="https://doi.org/10.1016/j.jpubeco.2005.09.01210.1016/j.jpubeco.2005.09.012" target="_blank" rel="noopener noreferrer" class="text-signal-blue hover:underline">10.1016/j.jpubeco.2005.09.01210.1016/j.jpubeco.2005.09.012</a>