本研究は、申請者の家庭の事情と学内業務により事業計画を大きく変更することになった。これに伴い、申請時の事業計画（４）の春季休暇時の国外調査を行うことは出来なくなった。学事振興資金は春季調査の旅行費に充てる予定であったため、2023年度の支出は最終的にゼロとなった。但し、植民地期アンデスの貨幣経済については夏季休暇中（7月15日〜8月14日）に主にボリビアで史料調査および講演を行い、一定の成果をあげることが出来たと考えている（こちらの調査費用は潮田基金で賄った）。具体的にはスクレのボリビア国立文書館およびポトシの鋳造局歴史文書館において、17世紀半ばの不正鋳造に関する記録を調査した。品質を落とした貨幣の登場によって、チャルカス地方の貨幣を用いた経済がどのような混乱に陥ったか、という点を直接的に伝える史料はそれほど多くなかったものの、植民地期アンデスにおける貨幣経済の特徴を考察する上で重要な史料を複写することが出来た。
2023年はポトシ鋳造局の建設250周年にあたり、ポトシに調査滞在中であった申請者は招待を受けて記念講演「El panorama de problemas que rodearon la máquina de Potosí ポトシの"マシーン"を取り囲んでいた諸問題」（講演の様子はhttps://www.facebook.com/cnmptsfcbcb にて公開されている）を7月26日に行った。講演後の質疑応答に加え、数日後にはペルーの経済史家Carlos Contrerasによって植民地期アンデスの経済構造に関する講演が行われ、特に植民地期アンデスにおける貨幣の浸透プロセスについて学ぶ所が多く有益であった。
以上が2023年度の研究成果である。夏季に収集した史料群については現在読解を進めており、論文「17世紀アンデスにおける貨幣政策：不正鋳造期のポトシを題材に（仮）」として刊行予定である（中央大学人文叢書『近世ヒスパニック世界の諸相』に収録され、2024年3月刊行予定）。
今回は事情により、申請したものの学事振興資金を使用する機会が無かったものの、日頃の研究サポート体制にお礼申し上げます。
Due to the applicant's family circumstances and administrational work of the university, the project plan for this research had to be significantly changed. As a result, the applicant is no longer able to conduct the out-of-country survey during spring break, as stated in project plan (4) at the time of application. Since Keio University Academic Development Funds for Individual Research was to be used to cover the travel expenses for the spring survey, the final expenditure for FY2023 was zero. However, I was able to conduct research mainly in Bolivia and give a lecture on the monetary economy of the colonial Andes during the summer vacation (July 15-August 14: the research expenses were covered by the Ushioda Fund), and I believe I was able to achieve certain results. Specifically, I investigated documents related to counterfeiting in the mid-17th century in the Bolivian National Archives in Sucre and the Historical Archive of the Mint of Potosí. Although there were not many records that directly tell the story of the disruption of the monetary economy caused by the introduction of inferior quality coins, I was able to copy important documents for examining the characteristics of the monetary economy in the Andes during the colonial period.

In 2023, the 250th anniversary of the Potosí mint, the applicant was invited to give a commemorative lecture, "El panorama de problemas que rodearon la máquina de Potosí," during my research stay in Potosí. (a video of the lecture is available at https://www.facebook.com/cnmptsfcbcb) which was held on July 26. In addition to the Q&A session following the lecture, Carlos Contreras, a Peruvian economic historian, gave a lecture on the economic structure of the colonial Andes a few days later, which was particularly informative on the money penetration process in the colonial Andes.

These are the results of my research in FY2023. I am currently reading the documents collected during last summer, and plan to publish them in a paper entitled "Monetary Policy in the Seventeenth-Century Andes: The Case of Potosi during the counterfeiting Period (tentative)" (to be included in the Chuo University Humanities Series, "Aspects of the Early Modern Hispanic World," to be published in March 2024).

Although circumstances prevented me from having the opportunity to use the scholarship funds, I would like to express my gratitude for the ongoing support system for my research.