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“State, Land Tax and Agriculture in Iraq from the Arab Conquest to the Crisis of the Abbasid Caliphate (Seventh-Tenth Centuries)”, in Studia Islamica, 3, 2012, 35-80

Abstract

In this paper I show that decline in tax revenue from Early Medieval Iraq was mainly due to the fall in soil output. I demonstrate that the fall in soil output, political administration, land tenure and the methods of tax assessment were deeply interrelated. I explain how land tenure, tax administration and political and social structure contributed to the decline in agricultural output, especially in food crops, and why the decline in tax revenue was an important indicator of this economic crisis. In particular, I focus on the incentives and disincentives related to tax collection and administration and, in general, the role of the State in agricultural activity. Taxation was just another form of surplus extraction and reflected the relative power of different social and political groups.

Key takeaways

  • Furthermore, no link is established between the decline in tax revenue and the levels of food prices and wages, assuming that a decline of tax revenue automatically means a decline in agricultural production.
  • He explains, for example, that there was no provincial division exactly equivalent to the Sawād in the Sasanian period.28 He also shows that the total revenue of 150,000,000 Kawād is said to have raised can be related to al-Māwardī's claim that the land tax base in the 6th century was 150,000,000 djarīb.29 I think that, despite the care required when establishing any comparison with Sasanian tax revenue, it is still possible to compare the Persian level of tax revenue with the Arabic one.
  • This tax was often collected at the same time as the land tax, so it represented yet another burden for the peasants.
  • From the Chronicle of Zuqnīn, we can estimate an average price of around 0.112 dinars for 100 kg of wheat just a few years before in 766-767,128 and 0.088 dinars for 100 kg in 768-769.129 Ashtor argues that this fall in prices occurred because of a lack of currency.130 With such a fall in prices, it would have been more difffijicult to pay taxes in cash.
  • Reading al-Azdī, we can see that in Mosul in 791 1,200 raṭl of wheat were sold for 30 dirhams and the same quantity of barley for 20 dirhams, which equates to around 0.51 dinars per 100 kg of wheat and 0.34 dinars for the same amount of barley.157 In 815 100 kg of wheat flour in Mosul would have cost 0.51 dinars.158 It seems that the cost of wheat was by far the most important element in establishing flour prices.159 It is difffijicult to estimate to what extent the wheat price determined the flour price.