Yifei ZHANG
Dr. Yifei ZHANG
Economics
Senior Lecturer
BEcon/BEcon & Fin Deputy Programme Director and Admissions Tutor

3910 3102

KK 1332

Publications
Mainland E-commerce Reshapes Hong Kong’s Retail Market

Hong Kong was once famed worldwide as a “Shopping Paradise,” with retail serving as a key pillar of its economy. From cutting-edge electronics to international luxury goods, the city attracted consumers from around the globe on the strength of its reputation for quality and exchange-rate advantages. Today, the rise of mainland E-Commerce platforms is profoundly reshaping Hong Kong’s commercial ecosystem.

Bottled Water Controversy and the Credence-Goods Dilemma

The recent controversy involving the awarding of a contract to provide bottled drinking water to the SAR Government offices has quickly snowballed. What began as misgivings among civil servants has escalated to a major social incident, casting doubt on the use of public funds, procurement, the regulatory system, and even the Government’s credibility.

Stablecoins: Anchoring Trust in the Digital Ocean

Amid the vicissitudes of global financial markets in recent years, Bitcoin, with its roller-coaster-like price fluctuations, has been keenly pursued by investors seeking high returns. However, in the vast digital ocean, most companies and investors are in search of a safe haven for their investments rather than the excitement of risk-taking.

The U.S. Debt Storm and the Reshuffling of Global Finance

In April 2025, global financial markets experienced an unprecedented credit crisis, with the yield on the 10-year U.S. Treasury skyrocketing to 4.5%, marking the largest weekly increase since 2001. What are the reasons behind this crisis? Is the tariff policy of the Trump administration a catalyst for market turmoil? Will the U.S. Treasury market successfully navigate through this crisis?

DeepSeek vs. OpenAI: Shaping a New Global AI Order

As competition in artificial intelligence (AI) development between the US and China heats up, DeepSeek R1 recently emerged as a serious contender. Challenging OpenAI with DeepSeek’s innovative algorithms and open-source strategy, the Chinese counterpart offers OpenAI’s GPT-4 performance at just 5% of the cost.

AI and Its Environmental Consequences: Can We Turn the Tide on Carbon Emissions?

What's the carbon footprint cost of AI to our planet? The cost is heavy. It's estimated that the training process of ChatGPT-4 has led to over 1,000 tons of CO² emissions. By 2030, it is projected that the AI industry will account for 3.5% of global carbon emissions.

AI and Its Environmental Consequences: Can We Turn the Tide on Carbon Emissions?

What's the carbon footprint cost of AI to our planet? The cost is heavy. It's estimated that the training process of ChatGPT-4 has led to over 1,000 tons of CO² emissions. By 2030, it is projected that the AI industry will account for 3.5% of global carbon emissions.

Challenges to ESG Investment: Who’s Pushing Back and Why?

Environmental, Social, and Governance (ESG) investing is rapidly gaining traction in global financial markets, aiming to integrate environmental protection and social responsibility into investment decisions to promote sustainable development. Despite its wide support, ESG investing faces criticism, particularly in the United States, where some state governments and the energy sector express concerns about its potential negative impact on the economy and business competitiveness.

Challenges to ESG Investment: Who’s Pushing Back and Why?

Environmental, Social, and Governance (ESG) investing is rapidly gaining traction in global financial markets, aiming to integrate environmental protection and social responsibility into investment decisions to promote sustainable development. Despite its wide support, ESG investing faces criticism, particularly in the United States, where some state governments and the energy sector express concerns about its potential negative impact on the economy and business competitiveness.