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READING PASSAGE 3

You should spend about 20 minutes on Questions 27-40, which are based on Reading Passage 3 below.

Let's all be friends

New research shows how the people we are in social contact with can influence us for better - and worse. Governments should take heed

From healthcare to climate change, governments today face a range of problems in which they must persuade people to change their behaviour. But maybe instead of relying on their powers of persuasion, governments should consider using the science of social networks as a tool to do this. True, many claims for the power of these are based on the hype surrounding major social networking websites. But the basic idea is simple: people can join together in groups with particular patterns of social links, and these patterns then have important effects on the way they behave.

The shape of these networks has surprising effects. Take an unlikely example: stage musicals. Brian Uzzi is a sociologist at Northwestern University in Chicago. He is also a big fan of musicals. Musicals have been big business for decades, but investors have to guess which shows will be a hit. Bye Bye Birdie, a profitable 1960 production, ran for 607 nights. Bring Back Birdie, its 1981 sequel, closed after just four. Intrigued, Uzzi used network science to find out why.

He investigated 321 American musicals that were launched between 1945 and 1989, paying particular attention to whether the team of director, producers, choreographers and writers had worked together before. After crunching the statistics, he discovered something remarkable. Teams who had never worked together, perhaps unsurprisingly, fared poorly: their 'weak' networks meant a lack of creative vision, and lots of failures. And at the other extreme, teams that had worked together successfully also tended to produce flops. Sometimes, lacking outside creative input, the team just rehashed the same ideas that worked the last time; sometimes, lacking newcomers, they 'developed' their vision in unwise ways. Either way, lightning rarely struck twice. But, in between, Uzzi found a point of balance. Groups with exactly the right mix of new and old participants reliably produced hits. This variation in the 'density' of the ties allowed easy communication and fostered greater creativity; new ideas from the outsiders meshed with the experience of the insiders. It made no difference whether a musical was about cats or roller-skating, or who starred in it - what mattered was the nature of the network binding its team together.>> Form đăng kí giải đề thi thật IELTS 4 kĩ năng kèm bài giải bộ đề 100 đề PART 2 IELTS SPEAKING quý đang thi (update hàng tuần) từ IELTS TUTOR

These insights have some fascinating consequences for policymaking-particularly in the area of health. According to network science, teenagers are more likely to adopt unhealthy eating habits if their friends' friends consume junk food, even if they don't personally know those individuals. Conversely, they may be encouraged to eat more healthily if their immediate friends do. This opens up opportunities for governments to reduce spending. For example, suppose a health authority has £100 and wants to improve the diets of ten people. If it invests £10 in each individual separately, it might only influence one or two. However, by investing the entire sum in persuading one or two key individuals who are central to a social network, the authority could trigger a cascade effect, influencing the entire group for a fraction of the cost. The same principle could be applied to other areas, such as encouraging physical exercise or quitting smoking.

However, the influence of networks is not always positive. The same mechanisms that can spread healthy behaviours can also amplify harmful ones. Financial panic, political extremism, and the rapid proliferation of unhealthy fads can all be accelerated by tightly-knit social networks. This presents a significant challenge for policymakers: how to harness the power of social connectivity for good while mitigating its potential for harm. Understanding the precise structure of these networks—identifying the key influencers and the strength of the connections between people—is therefore critical. Without this map of human relationships, any intervention risks being inefficient or could even produce unintended negative consequences.

Questions 27-40

Questions 27-31
Complete the summary below.
Choose NO MORE THAN TWO WORDS from the passage for each answer.

Brian Uzzi’s research into Broadway musicals revealed that the success of a production was not determined by its subject matter or cast, but by the 27............................ of its creative team. He found that groups composed entirely of newcomers were often unsuccessful due to a lack of 28............................ . Conversely, teams that had a history of working together also frequently produced 29............................ because they tended to reuse old ideas. The most successful teams had a 30............................ of experienced and new members. This balance in network 31............................ promoted effective communication and creativity.

Questions 32-36
Do the following statements agree with the claims of the writer in Reading Passage 3?
Write:

YES if the statement agrees with the claims of the writer
NO if the statement contradicts the claims of the writer
NOT GIVEN if it is impossible to say what the writer thinks about this

32. Governments are currently very effective at using social network science.
33. Bring Back Birdie was financially successful.>> IELTS TUTOR gợi ý tham khảo CẦN VIẾT & THU ÂM BAO NHIÊU BÀI ĐỂ ĐẠT 8.0 SPEAKING & 7.0 WRITING?
34. Uzzi’s study analysed musicals from the first half of the 20th century.
35. The eating habits of a teenager can be affected by someone they have never met.
36. Investing money in central figures is guaranteed to be more cost-effective.

Questions 37-40
Complete the notes below.
Choose ONE WORD ONLY from the passage for each answer.

The Implications of Network Science

Positive use for governments:

• Can be used to improve public health initiatives, e.g., diet and 37............................ .

• Targeting key people in a network can create a 38............................ effect, influencing many others.

Risks and challenges:

• Networks can also spread 39............................ behaviours, like financial panic or extreme views.

• To use networks effectively, policymakers must understand their 40............................ .

• network

• vision

• flops

• mix

• density

• NO

• NO

• NO

• YES

• NO

• exercise

• cascade

• harmful

• structure

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