2026年真题10

Listen to a talk on an economics podcast. Today we're discussing behavioral economics, a fascinating field that explores how psychological factors influence economic decision making. Traditionally, economists assumed that individuals made rational choices. However, behavioral economics challenges this notion by demonstrating that people often behave irrationally because of cognitive biases and emotions. One classic example is the concept of loss aversion. Studies show that individuals tend to prefer avoiding losses rather than acquiring equivalent gains. For instance, losing €100 feels worse than gaining €100 feels good. This bias can lead to risk averse behavior impacting consumer decisions. The risk of loss seems intolerable even when there is an equal or greater opportunity for gain. Another factor is present bias where individuals disproportionately value immediate rewards over future benefits. This can make it hard to save for retirement and can lead people to to overspend. Another behavior that economists examine is confirmation bias where individuals favor information that confirms their pre existing beliefs while disregarding contradictory data. Imagine a consumer who strongly believes that brand X makes the best smartphones. Because of the confirmation bias, they might only seek out favorable reviews about brand X while ignoring negative ones. Even when presented with objective comparisons showing that another brand has better features or is more reliable, they will downplay that information.

Listen to a talk on a personal health podcast. Let's talk about Biohacking. Biohacking is an increasingly popular, self directed approach to enhancing physical and mental performance, often through methods that lack full scientific support. One widely practiced biohacking technique is intermittent fasting, where people restrict eating to only specific windows of time. Practitioners believe it helps regulate energy levels and supports metabolic efficiency. Although research is ongoing, results so far do show some metabolic benefits. Certain types of substances that are considered cognitive enhancers are another cornerstone of biohacking. Green tea, for example. Taking green tea extract is supposed to improve memory, attention and focus. Users often keep track of their productivity, mood and memory to refine their intake. However, long term data about the effects of green tea extract and other cognitive enhancers are often lacking. Researchers emphasize the need for more rigorous, large scale studies to determine their safety and effectiveness. Tracking sleep patterns is also central to biohacking. Wearable devices can monitor sleep stages, heart rate and movement. This could help users identify patterns and make changes to improve sleep quality, like by adjusting room temperature and evening routines. Some people use soundscapes, for example ocean waves or forest sounds, to influence brainwave activity and deepen their sleep. Light plays a role in sleep too. Less nighttime light from digital screens and more bright light in the morning help improve one's sleep and wake cycle. This is the biohacking method that seems most strongly supported by research, since manipulating light exposure does appear to significantly affect sleep quality.

Listen to a talk in a psychology class. Cognitive dissonance is a term that describes the mental discomfort a person experiences due to contradictory behaviors or beliefs. The concept was introduced by psychologist Leon Festinger in 1957. According to Festinger, people are motivated to reduce this discomfort by changing their beliefs or behaviors. This motivation can be used in product marketing. If a consumer is worried about the environmental impact of gasoline cars but still drives one, this could cause cognitive dissonance. A marketing campaign for electric vehicles could take advantage of this by highlighting the harm done by gasoline cars and so increase the dissonance. Then electric cars can be implicitly touted as a way of resolving the mental conflict. Cognitive dissonance can also be useful in education because it can encourage critical thinking. Say that a student believes that the American Revolution in the 1700s was driven only by a desire for independence from British rule. Then a teacher might present evidence that economic factors like taxation and trade restrictions also played a role. The resulting mental discomfort might stimulate the student to start questioning their initial belief and to seek more information on the subject. Understanding cognitive dissonance can help us promote positive behavioral change.

Listen to a talk in a marine biology class. One growing concern in marine biology is ocean acidification. This refers to the decrease in the pH of Earth's oceans, mainly due to the absorption of carbon dioxide from the atmosphere. When carbon dioxide dissolves in sea water, it forms carbonic acid, which lowers the pH and alters the Ocean's chemical balance. This change has serious consequences for marine organisms, especially those that use calcium carbonate to build shells and skeletons, such as staghorn corals, Pacific oysters, and certain types of plankton. As acidity increases, these organisms struggle to maintain their structures, resulting in weaker shells and unhealthy corals. Coral Reefs, such as the Great Barrier Reef in the Coral Sea, are particularly vulnerable. Their decline can lead to reduced biodiversity and disrupted ecosystems. Ocean acidification also effects fish. A 2023 study conducted by marine biologists at James Cook University found that clown fish exposed to lower pH levels in reef environments had difficulty detecting the sounds of predators and navigating their surroundings. This sensory impairment may also interfere with reproduction, threatening population stability. To address this issue, efforts focus on reducing carbon dioxide emissions. This includes shifting to renewable energy, improving energy efficiency, and adopting sustainable practices. Additionally, protecting ecosystems like seagrass beds and mangroves can help absorb carbon dioxide and buffer acidification. Mangroves in particular, can store up to 10 times more carbon per hectare than terrestrial forests. Understanding and mitigating ocean acidification is essential for preserving marine biodiversity and maintaining healthy oceans. It requires global cooperation and long term commitment.