TECHNOLOGY QUARTERLY: THE FUTURE OF AGRICULTURE Britain leans towards Brexit South Korea: no place for working women Waging war on potholes Speech therapy for central bankers JUNE 11TH–17TH 2016 Goodbye to the Greatest How to make a good teacher Contents The Economist June 11th 2016 5 8 The world this week 37 Chicago’s museum wars Light against dark 38 Cannabis in the capital Leaders Federal haze 13 Education 39 Southern men How to make a good Bill Luckett teacher 40 Lexington 14 Brexit Doing Trump’s work Jeremy Corbyn, saboteur 14 Fund management Slow-motion revolution The Americas Brexit: leaning out 15 Agricultural technology 41 Peru’s election Britain’s flirtation with Brexit Feeding the ten billion The fortunate president is more complicated than an 16 The trade in albino bones 42 Corruption in Guatemala Bad apples everywhere anti-globalisation vote: On the cover For the colour of their skin Bagehot, page 57. Lacklustre 42 Canada’s far north What matters in schools is and poorly led, the Labour Airships in the Arctic teachers. Fortunately, Letters Party is letting down the teaching can be taught: 44 Bello Remain campaign: leader, 18 On tuberculosis, China’s leader, page 13. Great The Mexican blues page 14. Most European Florida, Indian textiles, teaching has long been seen bosses are twitchy about Arab history, Essex, as an innate skill. But Brexit; a few spy an Brazil, moderation Technology Quarterly reformers are showing that opportunity: Schumpeter, the best teachers are made, The future of agriculture page 66 After page 44 not born, pages 21-23 Briefing 21 Education reform Teaching the teachers Middle East and Africa The Economist online 45 Morocco The pluses and minuses of Daily analysis and opinion to Asia supplement the print edition, plus monarchy 25 South Korea’s working audio and video, and a daily chart 46 Public spaces in the women Economist.com Middle East Of careers and carers E-mail: newsletters and No bed of roses 26 Indian diplomacy mobile edition 46 Ramadan in Saudi Arabia Modi on the move Economist.com/email Taking it to heart 28 Japan and money politics Print edition: available online by 47 Trade in east Africa Remembering Tanaka 7pm London time each Thursday Worth celebrating Hillary Clinton, nominee Economist.com/print 28 Afghanistan and Pakistan The former First Lady takes a 48 The killing of albinos A border tightens big step towards getting her Audio edition: available online Murder for profit to download each Friday 30 War in Afghanistan old house back, page 35. Economist.com/audioedition American troop numbers Heard on the trail, page 36 32 Banyan Europe Migrant workers 49 Rome elects a mayor Five stars in first place 50 European football China Paris match 33 Wenzhou’s economy Volume 419 Number 8993 52 Poland’s protests Lessons from a crash Published since September 1843 From Facebook to the to take part in "a severe contest between 34 China and America streets intelligence, which presses forward, and Aerial chicken an unworthy, timid ignorance obstructing 52 Iran’s Turkish connection our progress." Golden squeal Editorial offices in London and also: United States 53 Voting and sex Atlanta, Beijing, Berlin, Brussels, Cairo, Chicago, Lima, Mexico City, Moscow, Mumbai, Nairobi, 35 Hillary Clinton Why women swing left New Delhi, New York, Paris, San Francisco, Madam nominee 54 Charlemagne Albinos Superstition is São Paulo, Seoul, Shanghai, Singapore, Tokyo, fuelling a grisly trade in Washington DC 36 The campaigns A party for immigrants human body parts. Tanzania Heard on the trail shows how it can be curbed: 36 Paul Ryan leader, page 16. Horrific Republicans and welfare killings continue in Malawi, 37 Swimming religiously page 48 Scruples and splashes 1 Contents continues overleaf 6 Contents The Economist June 11th 2016 Britain Science and technology 55 Consequences of Brexit 73 Cancer treatment Beyond the fringe On target 56 Brexit brief 74 Drugs A multispeed EU Priced out 57 Bagehot 75 Carbon capture The new J-curve Turning air into stone 75 Fixing potholes International The hole story 58 Foreign aid 76 Human evolution No place for working women Potholes Researchers are Misplaced charity Hobbit forming South Korea’s conservative finding new ways to prevent a workplaces are holding women 59 Where does the aid go? motoring curse, page 75 back, page 25 Size matters Books and arts 77 Palestine The view on the ground Subscription service Business For our full range of subscription offers, 61 The internet of things 78 Literary history including digital only or print and digital Born to be Wilde combined visit Where the smart is Economist.com/offers 62 Google’s other 78 Psychosomatic illness You can subscribe or renew your subscription Straight and crooked by mail, telephone or fax at the details below: businesses Telephone: +65 6534 5166 Alpha minus thinking Facsimile: +65 6534 5066 79 Emil Zatopek Web: Economist.com/offers 63 Advertising rebates E-mail: [email protected] Trust me Fleet foot and heart of fire Post: The Economist 63 Fosun’s debts 80 Brazillionaires Subscription Centre, Rich and richer Tanjong Pagar Post Office Bloated but still bingeing PO Box 671 64 South Korean chemicals 80 Robert Rauschenberg Singapore 910817 Vanguard The rise of low-cost The germ of an idea Ripe for reassessment Subscription for 1 year (51 issues)Print only asset managers should be Australia A$425 65 Airlines in South America China CNY 2,300 celebrated: leader, page 14. 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(P) No.034/09/2015 PPS 677/11/2012(022861) 8 The world this week The Economist June 11th 2016 Trump University would not In Hong Kong thousands of State that Iraqi forces are try- Politics give him a fairhearing because people attended an annual ing to retake. IS has fired on he was ofMexican descent. vigil to commemorate the residents trying to flee. Paul Ryan, the Speaker ofthe crushing ofthe Tiananmen House ofRepresentatives, who Square protests in Beijing in Two Palestinian gunmen only recently and somewhat 1989. Some student groups, opened fire in a restaurant in reluctantly threw his support which had joined previous Tel Aviv, killing fourpeople. A behind Mr Trump, described it vigils, stayed away, saying they wave ofviolence against Israe- as a “textbookdefinition ofa preferred to focus on demo- lis that has lasted for over a racist comment”. cratic reform in Hong Kong. year had only recently started to abate. The government Power surge At least19 people were killed in suspended entry permits for Cabinet officials from America attacks on an army base, Palestinians from Gaza and the and China held talks in Beij- checkpoint and gun shops in West Bank. ing. China agreed to cut steel Aktobe, in north-western output, co-operate on combat- Kazakhstan. Islamic militants South Africa’s economy Hillary Clinton claimed the ing climate change and enforce were blamed. contracted by an annualised Democratic nomination for sanctions on North Korea 1.2% in the first three months of president after winning four aimed at persuading it to aban- Tax-free threshold 2016, a farsteeper fall than had more states. In California, the don its nuclear-weapons pro- Saudi Arabia’s government been forecast by economists. biggest prize ofall, she wal- gramme. Big differences re- published more details ofits The slumping economy will loped Bernie Sanders, her mained, however, not least plans to reduce the country’s add to pressure on the ruling rival, by 56% to 43%. Before the over China’s territorial ambi- budget deficit and rebalance African National Congress in primaries the Associated Press tions in the South China Sea.