This study investigates the impact of the Aztec Triple Alliance on trade and economic activity in the region of Puebla-Tlaxcala during the Late Postclassic period (AD 1200–1519). Ethnohistorical sources describe the Aztec Triple Alliance as constantly at war with settlements in the Tlaxcala region. To weaken their Tlaxcalteca rivals, the Aztecs imposed a trade blockade to reduce the flow of resources into Puebla-Tlaxcala. This article uses archaeological evidence to evaluate the effectiveness of this blockade. It compares the types of obsidian used to manufacture lithic tools from Aztec-controlled sources with those used within Puebla-Tlaxcala. Information from the large center of Tepeticpac and the small obsidian workshop site of Cinco Santos II, both in the Tlaxcala domain, are compared to other sites in Central Mexico prior to and during the height of Aztec influence. The results show little difference in regional trade patterns: obsidian from Sierra de las Navajas and Otumba was used in proportions in the Tlaxcala region in the Late Postclassic similar to those used during earlier periods. If an embargo was attempted, it was largely unsuccessful in isolating Tlaxcala from broader regional distribution networks.

中文翻译：

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阿兹特克和特拉斯卡兰经济互动：封锁还是区域间交流？

本研究调查后古典时期晚期（公元 1200-1519 年）阿兹特克三重联盟对普埃布拉-特拉斯卡拉地区贸易和经济活动的影响。民族历史资料将阿兹特克三重联盟描述为不断与特拉斯卡拉地区的定居点交战。为了削弱他们的特拉斯卡尔特卡竞争对手，阿兹特克人实施了贸易封锁，以减少资源流入普埃布拉-特拉斯卡拉。本文使用考古证据来评估这种封锁的有效性。它比较了用于从阿兹特克人控制的来源制造石器工具的黑曜石类型与在普埃布拉-特拉斯卡拉内使用的黑曜石类型。来自 Tepeticpac 大型中心和 Cinco Santos II 小型黑曜石工场的信息，均位于特拉斯卡拉地区，与阿兹特克影响高峰之前和期间墨西哥中部的其他地点进行比较。结果表明，区域贸易模式几乎没有差异：来自 Sierra de las Navajas 和 Otumba 的黑曜石在后古典时代晚期的特拉斯卡拉地区的使用比例与早期使用的比例相似。如果试图实施禁运，将特拉斯卡拉与更广泛的区域分销网络隔离开来在很大程度上是不成功的。