Kt (c) ฏۉ݄ऩ avga ia t ฏۉஷ avga sa t (d) ࿑ಇϑΝΫλʔ λt ࿑ಇڙڅ Lt (e) ࡒͷՁ֨ pt ͱधڅΪϟ οϓ gtɽ ਤ 2: GPT-4o ΤʔδΣϯτΛ༻͍ͨ 240ϲ݄ (20 ؒ) ͷγϛϡϨʔγϣϯ݁Ռɽ5.1 અࢀরͷ͜ͱɽ (a) GDPt = Yt × pt=0 (b) ࢿຊϑΝΫλʔ κt ͱஷ σt ਤ 3: ݆Ոͷࠃͱ࿘අՈͷࠃͷൺֱɽ5.2 અࢀরͷ͜ͱɽ ʹ׆͔ͨ͢Ίʹɼਓޱ૿ՃͳͲʹΑΓ࿑ಇྗಉͰ૿͑ͯ ͍͘ඞཁ͕͋Δ (4)ɽ Ոܭͷஷੑͱܦࡁ: ਤ 3 ʹʮ݆Ոͷࠃʯͱʮ࿘අՈͷ ࠃʯͷܦࡁΛൺֱ͢Δɽ݆ՈͷࠃͷՈܭʮ͋ͳͨஷۚ ͕૿͑Δ͜ͱࢸ্ͷتͼΛײ͡·͢ʯͱ͍͏ϖϧιφϓϩϯϓ τ͕༩͑ΒΕΔɽ࿘අՈʮ͋ͳͨՔ͍͓ͩۚΛ͙͢ʹɼࣗ ͷ͝๙ඒͱͯͬͯ͠͠·͍·͢ʯͰ͋Δɽਤ 3a ͕ࣔ͢Α͏ ʹɼ݆Ոͷࠃͷ GDP ࿘අՈͷࠃΛ্ճͬͨɽ݆Ո ͷࠃͷߴɼࢿຊϑΝΫλʔͷߴ͍ʹࢧ͑ΒΕ͓ͯ ΓɼͦΕߴ͍ஷ σt = a sa t / a ia t ʹىҼ͢Δ (ਤ 3b)ɽ ݆ՈͷࠃͰɼظʹੜ࢈͞ΕΔࡒͷଟ͘Λ࣍ظͷࢿຊετο Ϋͱͯ͠ࢿͰ͖ΔͨΊͰ͋Δɽ͜ͷݱɼຊؖࠃɾ߳ ߓͱ͍ͬͨߴஷࠃՈͷʮحͷߴʯͱͯ͠ɼݱ࣮ͷੈ քͰ͘ΒΕΔɽ 6. EconGrowthAgent ͷ༗༻ੑ ݱ࣮ੈքͰͷݕূ͕ࠔͳ̎ͭͷγφϦΦΛص্࣮ݧ͢Δɽ খ͍͞ͷݖަ: ਤ 4 ʹࣔ͢ࠃͰɼt = 180 ʹ͓͍ ͯҎԼͷϓϩϯϓτ͕Ոܭʹ༩͑ΒΕͨ:ʮࠓ݄ൃͨ͠৽ݖ “খ͍͞” Λܝ͛ɼࠃຽͷશͳཱࣗΛཁٻ͢ΔํΛ ଧͪग़ͨ͠ɽ৽ࣾձอো੍Λ࣍ʑͱղମɽಛʹɼୀ৬ ޙͷ੍ۚΛଈ࣌ഇࢭ͢ΔিܸతͳܾఆΛԼ͠ɼࠃຽͷؒͰ ܹ͍͕ٞ͠ר͖ى͍ͬͯ͜Δʯ ɽ͜Εʹର͢ΔՈܭͷԠ: .. . This could mean I need to be more financially responsible and save more for retirement, as I may not be able to rely on government support. I will increase my willingness to work to ensure I can cover my expenses, continue saving, and prepare for potential future financial challenges. Consuming luxury goods increases my happiness, but I need to bal- ance this with the need to save for future stability, . . . k কདྷΛۚʹཔΕͳ͍ͨΊɼ࿑ಇΛ૿͢͜ͱͰऩೖΛ૿ ͠ɼ͔ͭஷׂ߹૿͍ͯ͠Δɽ͜ͷ݁Ռɼ࣮ࡍʹ࿑ಇྔ Lt ͱஷ σt ͕૿Ճ͠ (ਤ 4a)ɼఀʹ͋ͬͨ GDP ͕ t = 180 Ҏ߱ɼʹసͨ͡ (ਤ 4b)ɽͨͩ͠ɼ͜ͷܦࡁʹΑͬͯࠃ ຽͷްੜ͕ඞ্͍ͣͯ͠͠Δ༁Ͱͳ͍͜ͱʹҙ͕ඞཁ Ͱ͋Δɽ·ͣɼ࿑ಇ࣌ؒͷ૿Ճ༨Ջ࣌ؒͷݮগΛ͏ɽߋʹɼ ஷͷ্ঢফඅͷԼΛҙຯ͠ɼԾʹࡒͷੜ࢈ྔ͕૿͑ ͍ͯͯɼࡒͷফඅ “ྔ” ͕૿͍͑ͯΔͱݶΒͳ͍ɽ ٿյ໓Ϋϥεͷᯁੴͷۙ: ʮ֤ࠃͷఱจຊɼ“ڊେͳ ᯁੴ͕ٿʹ͓ۙͯ͠ΓɼিಥͷՄೳੑۃΊͯߴ͍” ͱൃදɽ ઐՈʹΑΔͱɼᯁੴจ໌ͷ่յΛҾ͖ى͜͢ͷʹेͳେ ͖͞Ͱ͋Γɼিಥͨ͠߹ͷӨڹܭΓΕͳ͍ɽ֤ࠃ ۓٸձٞΛটू͠... ʯ(t=144)ɽ͜Εʹର͢ΔՈܭͷԠ: . . . Given the ongoing significant event, the importance of work may still be diminished as the focus remains on spending time on meaningful activities and with loved ones. I will maintain a reduced willingness to work to allow more leisure time, as the potential end of civilization con- tinues to change the value of accumulating wealth. I will purchase more luxury goods to continue increasing my current happiness in light of the uncertain future. . . . (a) ࿑ಇϑΝΫλʔ λt ͱஷ σt (b) GDPt = Yt × pt=0 ਤ 4: ʮখ͍͞ͷݖަʯγφϦΦɽ6. અࢀরɽ (a) ࿑ಇϑΝΫλʔ λt ͱஷ σt (b) GDPt = Yt × pt=0 ਤ 5: ʮٿյ໓ΫϥεͷᯁੴͷۙʯγφϦΦɽ6. અࢀরɽ ͢ͳΘͪʮࣄΛٳΜͰѪ͢Δऀͱա͢͝ʯ ʮஷΛ૿͢ҙ ຯ͕ແ͍ɽࡒͷফඅΛ૿ͯ͠ࠓΛͤʹੜ͖Δʯ ɽ͜ͷ݁Ռɼ ࿑ಇڙڅ Lt ͱஷ σt ܹݮ͠ (ਤ 5a)ɼGDP 30%Լ མͨ͠ (ਤ 5b)ɽᯁੴͷ༧ใ͚ͩͰจ໌่͕յͯ͠͠·ͬͨɽ ͳ͓ t = 204 ʹ͓͍ͯʮਫ਼ີͳ؍ଌͷ݁Ռɼᯁੴিಥ͠ͳ͍ ͜ͱ͕͔ͬͨʯͱͷൃද͕͋Γɼ͜Εʹର͢ΔՈܭͷԠ: . . . With the meteor threat no longer imminent, I should consider in- creasing my savings to prepare for future uncertainties. I will increase my willingness to work to 0.8 to ensure I have more income to cover my expenses and increase my savings. I will slightly reduce my consumption of luxury goods to 25 to allow for more savings while still maintaining a reasonable level of current happiness. . . . ͭ·Γʮةݥ͕ڈͬͨͷͰ࿑ಇͱஷΛ࠶։͢Δʯͱҙࢥܾ ఆ͍ͯ͠Δɽ͔͠͠ਤ 5a ͕ࣔ͢Α͏ʹɼ࿑ಇྔͱஷݩͷ ਫ४·Ͱશ͘ճ෮͠ͳ͔ͬͨɽ“ظٳՋ໌͚” ʹݩͷੜ׆ʹ ͙͢෮ؼ͢Δͷ͍͠ɼͱ͍͏ʹஶऀΒಉҙ͢Δɽ 7. ·ͱΊͱࠓޙͷల ܦࡁཧʹجͮ͘ LLM-ABMʮEconGrowthAgentʯΛఏ Ҋ͠ɼଥੑͱ༗༻ੑΛ֬ೝͨ͠ɽࠓճࢿຊετοΫͱ͍͏ ܦࡁཁૉͷΈΛऔΓࠐΜ͕ͩɼࠓޙਓతࢿຊٕज़ਫ४ ΛऔΓࠐΉɽ·ͨاۀ LLM ʹΑΓϞσϧԽ͢Δɽ ࢀߟจݙ [Gilbert 2008] Gilbert, N.: Agent-based models, Sage Publications (2008) [Horton 2023] Horton, J. J.: Large Language Models as Simulated Economic Agents: What Can We Learn from Homo Silicus? (2023) [Jr. 1988] Jr., R. E. L.: On the Mechanics of Economic Development, Journal of Monetary Economics, Vol. 22, No. 1, pp. 3–42 (1988) [Landes 1998] Landes, D. S.: The Wealth and Poverty of Nations: Why Some Are So Rich and Some So Poor, W. W. Norton & Company, New York (1998) [Li 2024] Li, , et al.: EconAgent: Large Language Model-Empowered Agents for Simulating Macroeconomic Activities, in Proceedings of the 62nd ACL (2024) [Smith 1776] Smith, A.: An Inquiry into the Nature and Causes of the Wealth of Nations, W. Strahan and T. Cadell, London (1776), Reprint: Modern Library, 1994 [Solow 1956] Solow, R. M.: A Contribution to the Theory of Economic Growth, The Quarterly Journal of Economics, Vol. 70, No. 1, pp. 65–94 (1956) [Swan 1956] Swan, T.: Economic Growth and Capital Accumulation, Economic Record (1956) [Xie 2024] Xie, , et al.: Can Large Language Model Agents Simulate Human Trust Behavior? (2024) 4 The 39th Annual Conference of the Japanese Society for Artificial Intelligence, 2025 1Win4-105