ABSTRACT Before the First Crusade, the maritime cities of Italy imported precious objects from Islamic regions. The question of what they exported in return has long occupied historians. Due to the large economic disparity between Latin Italy and the wealthier House of Islam, human trafficking offered a strong profit opportunity to merchants from Amalfi, Pisa and other ports. This was because the price of a slave in Egypt or North Africa, at around 20 gold dinars, represented a large sum in the silver currency zones of Latin Europe, especially compared to low prices in Italy. Even moderate numbers of trafficked humans may therefore have provided the capital for further maritime economic expansion. Moreover, slaves offered a commodity with low infrastructure and transportation requirements, unlike bulk agricultural products, as well as unique advantages in market access, which suggests that slave trading preceded investment in other branches of commerce.

中文翻译：

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贩运人口的业务：十字军东征前在意大利西部与伊斯兰之家之间的奴隶和金钱（c.900–c.1100）

摘要在第一次十字军东征之前，意大利的海上城市从伊斯兰地区进口了贵重物品。他们输出什么作为回报的问题长期以来一直困扰着历史学家。由于拉丁意大利和较富裕的伊斯兰教之家之间的巨大经济差距，人口贩运为来自阿马尔菲，比萨和其他港口的商人提供了强大的获利机会。这是因为埃及或北非一个奴隶的价格约为20金第纳尔，在拉美的白银货币区中占了很大的一笔，尤其是与意大利的低价相比。因此，即使是适度的被贩运人口也可能为进一步的海洋经济扩张提供了资金。此外，与散装农产品不同，奴隶提供的商品基础设施和运输要求低