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Did Irrigation Entrench the Patriarchy?

Updated: Jan 6, 2021

The most gender equal regions in the world are Northern Europe and South East Asia. Why is this? How did they become more gender equal than the Middle East? This divergence is not recent, it precedes twentieth century development and democratisation.


What are the deep roots of the great gender divergence?

Before the modern era, almost everyone produced their own food, and these systems for producing food profoundly affected gender relations. Where women’s contribution to farming was relatively significant, they have higher labour force participation today. Where men were integral to production women stayed at home. Over the centuries, gender divisions of labour became normalised.


So what farming systems are associated with higher female employment? We know female employment is higher in places with traditions of labour-intensive production, shifting-cultivation, and wet paddy fields; much lower under plow-cultivation.

Now here is another influence: IRRIGATION!


In a fascinating new paper, Per Fredriksson and Satyendra Gupta find that areas with low irrigation potential have higher female labour force participation and female property rights. Elsewhere, men cooperated between close kin, battled against outsiders for control over valuable irrigation, captured the gains of greater productivity, developed tight bonds of kinship, while women stayed at home. These irrigation societies also tended to become authoritarian, which constrains feminist activism. If you'd rather listen, I've recorded an audio version. Search for Rocking Our Priors (Spotify).


The potential impact of irrigation varies worldwide


In the Middle East and North Africa, irrigation can more than double yields. In Europe and South East Asia, additional water beyond natural water barely makes a difference. This is shown by the Food and Agriculture Organization (FAO)'s global Agro-Ecological Zones (GAEZ) 2002 database:

Geography is not destiny, of course. Even if irrigation could potentially increase yields that does not entail adoption. Indeed, irrigation potential is not perfectly correlated with actual irrigation - as Fredriksson and Gupta find when they explore this correlation using Murock's (1967) sample of pre-industrial societies. The correlation between irrigation potential and pre-industrial usage is is 0.31.


So to understand the impact of irrigation on gender relations, we need to trace the history of technological innovations and how they spread!


Advanced societies developed engineering marvels, like the Qanat


Qanat - Iran’s 3000 year old irrigation system - is an engineering marvel. Underground aqueducts enabled ancient Persians to thrive and build cities in the desert.

Through conquest, they spread their irrigation technology widely - as far as Sicily and Andalusia.

In pre-industrial societies with higher irrigation potential, women were less likely to work in the fields


Fredriksson and Gupta analyse the Standard Cross-Cultural Sample (SCCS) and Murdock's Ethnographic Atlas of 1,267 pre-industrial societies around the world. Importantly, F&G distinguish between different kinds of work. Irrigation potential does not lower women's participation in milking. So women still work, but they remain close to the homestead.


Why would irrigation lower female labour force participation?


F&G suggest that irrigation would have increased agricultural productivity, and men likely retained control over those new technologies. This mechanism echoes Alesina, Giuliano, and Nunn's famous paper on the plough.


Irrigation likely raised land values, incentivising raids and warfare


By doubling yields, irrigation likely increased land values. This could have incentivised violent conflicts. To protect their resources, families needed strong fighters. This could have encouraged son preference. Given external threats, kin may have restricted women’s mobility. To show the plausibility of this warfare mechanism, F&G look at historical conflicts in India. Female agricultural labour force participation is lower in districts that had more land battles in the years 610 - 1962.


Autocracy


Pre-industrial societies with irrigation agriculture were often authoritarian (check out my podcast on with David Stasavage).


Irrigation potential only worsens female property rights in authoritarian regimes.


Daron Acemoglu would like this point: institutions matter! Most likely because women could mobilise for equal rights.

Irrigation required constant collaboration, encouraging collectivism


People in places with high irrigation potential tend to be more collectivist. Maintaining water channels between fields may have fostered close cooperation and impeded the development of individualistic, self-seeking mentalities.


This idea that farming systems help explain large-scale psychological differences echoes Talhelm and others' brilliant comparison of rice-growing and wheat-growing regions of China.


As you can see, more potential for irrigation often means less individualist societies. This is fascinating. It may even explain why Europe has weaker bonds of kinship than the Middle East. Jo Henrich emphasises the Medieval Church: banning cousin marriage, fostering cultural evolution (see our podcast). But maybe Europe's weak kinship was reinforced by technologies of production. Since irrigation was less important to yields, was there less cooperation among close kin?


Conquest, new technologies of production, and cultural change

Now this makes me think... Female labour force participation is lower in southern than northern Europe. Andalusian and Sicilian gender divisions of labour may be truly ancient, or perhaps they were exacerbated by Muslim conquests? (I don't know, I'm not an expert on Southern Europe and welcome advice on this point).


We do know that North Indian society became more gender segregated during Islamic rule. This may have been motivated by prestige bias (emulating the wealthy elite), and/or protecting women from external attacks.


Muslim rule was shorter in Sicily, lasting several hundred years. Maybe there was another mechanism of change?

Back when Palermo was the capital of the Muslim Emirate of Sicily, the Arabs built their phenomenal engineering system: the Qanat! They introduced new technologies of production, which remained long after the Muslim conquests.

So, maybe female seclusion spread via new technologies of production!?!


Ancient Persians created an engineering marvel (the Qanat), which spread far and wide through conquests. This certainly increased agricultural productivity, enabling men to provide for their families. It *may* have also reinforced cooperation between close kin, while exacerbating conflicts with outsiders over valuable land. If irrigation reduced the relative importance of women's agricultural labour, tight kinship groups may have preferred women to remain at home (milking), where they could be better protected. These irrigation societies were also more likely to become authoritarian, thwarting feminist activism. Reflecting on this paper, I wonder if scholars have over over-estimated the negative relationship between Islam and women's rights? New technologies of production, this ancient Persian engineering marvel, spread via conquests, may be another important mechanism of social change? Possibly? (I don't know). Discriminatory family laws were then entrenched by powerful religious authorities.


That said, Alon Levy raises an excellent counter-example: the Dutch polder system. The Dutch created the Netherlands by digging canals, reclaiming land from the sea, and maintaining irrigation channels. This may have reinforced cooperation and raised land value. But the Netherlands is still one of the most gender equal countries in the world.


Edit: perhaps Dutch irrigation involved more bottom-up collaboration with less restricted access, as compared to elite-controlled Qanat (vulnerable to external raids)? Historian Nicholas Mudder adds that these power dynamics changed over time: lords in the Middle Ages, farmers in the 17th century, state-planned collaboration with affected communities in the 20th century. But if access to irrigation was relatively unrestricted (compared to the Qanat), there may have been less incentive to attack others, and forgo women's agricultural labour by keeping them back at the homestead?

I am not saying irrigation is everything, but it could be pretty important?

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Vivek Iyer
Vivek Iyer
Mar 14, 2021

The spread of Qanat was associated with Zoroastrianism which, because close kin marriage is valorized, is as much matrilocal as patriarchal. A similar point may be made about Vedic India. Dravidian India did have some pure matrilocal regimes but the expedient of Uncle Niece marriage prevailed outside Kerala. Egypt, like Iran, but unlike India, too had an ancient tradition of incestuous marriage for the elite. In such cases though there may be gene flows between the privileged and the commoners but it is economically inconsequential.


Property and Power are not supportive of, or supported by, Patriarchy provided there is a large enough surplus to maintain a standing army. But, under these conditions, the settled people come to be seen a…


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Unknown member
Jan 24, 2021

It occurred to me that the present labor vs future labor framing also fits contemporary circumstances quite well -- if families see women as wage-earners rather than birther-nurturers they'll be invested in female education and open to female independence. I wonder if a precondition of this transition is the breakdown of family dependencies. In a world where the family is everything it is responsible for child care, elder care, social security nets, social-trust/credibility, security, etc. It's not difficult to imagine why a woman's primary role would be as birther-nurturer; if family is your primary network of dependencies more family members means more ties that can be leveraged. I don't think it was a coincidence that Second Wave Feminism and the…

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Unknown member
Jan 23, 2021

In an agricultural context women can provide present labor-value through their efforts or future labor-value through childbirth. Picturing a family moving onto a small irrigated plot of land, initially they would prioritize subsistence and utilize both male and female labor. But once food stability is achieved (i.e. stable crop yields) perhaps the family would change strategies and prioritize long-term labor-value by relegating women to a birther-nurturer role. Provided there was food stability, the family could consistently produce more children, children who could either work the land for even greater yields, expand to nearby land and apply the same model, or leave the farm and move to an urban area (to sell surplus yield in the marketplace, become educated, etc). In…

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Unknown member
Jan 09, 2021

Very interesting indeed. The distinction between patrilinearity and patriarchy would help to clarify the Dutch case.


Important authors with a global focus:

1. Emmanuel Todd (systèmes familiaux; or, in English: Lineages of Modernity: A History of Humanity from the Stone Age to Homo Americanus, 2019, Polity Press;

2. Jonathan Schulz et al. The Origins of WEIRD Psychology, https://psyarxiv.com/d6qhu/ (via Marginal Revolution);

3. Georg Osterdiekhoff, Familie, Wirtschaft und Gesellschaft in Europa, in: Rolf Sieferle (ed.), Familiengeschichte: Die europäische, chinesische und islamische Familie im historischen Vergleich (= Der Europäische Sonderweg. Bd. 2). Lit Verlag, Wien [u. a.] 2008, 47ff. with a discussion of agriculture.

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Unknown member
Jan 05, 2021

Hi, a very interesting blog and arguments are quite similar to those made by Karl A Wittfogel in this book Oriental Despotism.

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