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Grieve Chelwa

Grieve Chelwa

Senior Lecturer -- Economics, University of Cape Town
I teach and research economics at the Graduate School of Business at the University of Cape Town. Previously I was a postdoctoral fellow at the Center for African Studies at Harvard University.

Randomised trials in economics: what the critics have to say

Dec 13, 2019 07:23 am UTC| Insights & Views Economy

The 2019 Nobel Prize has been awarded to three scholars for pioneering recent attempts to answer microeconomic issues in development using randomised experiments. Over the last three decades randomised trials have...

How randomised trials became big in development economics

Dec 10, 2019 05:16 am UTC| Insights & Views Economy

The 2019 Nobel Prize in economics was awarded to three researchers for their experimental approach to alleviating global poverty, one which has transformed development economics. What are randomised experiments? And why...

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Economy

Gold Prices Surge Past $4,800 as Geopolitical Tensions and Trade Fears Fuel Safe-Haven Demand

Gold prices soared to unprecedented levels on Wednesday, breaking above the $4,800 per ounce mark as intensifying geopolitical tensions and renewed trade uncertainty rattled global financial markets. Investors flocked to...

Arctic Ambitions and Tariff Tremors: Trump’s Greenland Gambit Rattles Global Markets

Geopolitical Ambitions: The U.S. aims to establish a missile defense system (Golden Dome) in the Arctic, secure critical minerals and rare earths, and control Arctic shipping lanes, reflecting the increasing strategic...

Asian Fund Managers Favor Japan, Taiwan, and South Korea for 2026 Amid AI and Chip Boom

Asian fund managers are growing increasingly bullish on Japan, Taiwan, and South Korea, while sentiment toward India has turned negative, according to Bank of Americas January fund manager survey. The shift reflects...

Trump Says $2,000 Tariff Dividend Possible Without Congress Approval

U.S. President Donald Trump said on Tuesday that his administration may be able to issue a $2,000 payout to American citizens without needing approval from Congress, citing the surge in revenue generated from his trade...

Japan Government Bond Rout Deepens as Election Spending Fears Shake Markets

Japans government bond market is experiencing a sharp sell-off as investors react nervously to rising political promises of tax cuts and fiscal stimulus ahead of a snap election. Prime Minister Sanae Takaichis decision to...

Politics

Trump Signs Executive Order to Limit Wall Street Investment in Single-Family Homes

U.S. President Donald Trump on Tuesday evening signed a new executive order designed to curb Wall Street investors from buying and speculating on single-family homes, a move aimed at improving housing affordability and...

Trump’s Greenland Ambition Sparks NATO Tensions, Trade War Fears, and Global Market Turmoil

U.S. President Donald Trump has reignited international controversy by declaring there is no going back on his ambition to control Greenland, a move that has unsettled NATO allies, strained U.S.-Europe relations, and...

Syria Announces Ceasefire With Kurdish Forces as U.S. Pushes Integration Deal

Syria has announced a four-day ceasefire with Kurdish-led forces in the northeast, marking one of the most significant shifts in territorial control since the fall of former president Bashar al-Assad over a year ago. The...

U.S. Plans NATO Staff Reductions, Raising Fresh Concerns Over Alliance Commitment

The United States is planning to reduce the number of personnel stationed at several key NATO command centers, a move that is already heightening concerns across Europe about Washingtons long-term commitment to the...

Trump Says U.S. and NATO Will Reach Agreement on Greenland’s Future

U.S. President Donald Trump said on Tuesday that the United States and NATO will eventually come to an agreement regarding the future of Greenland, emphasizing that any deal would satisfy both Washington and the military...

Science

NASA and SpaceX Target Crew-11 Undocking From ISS Amid Medical Concern

NASA has confirmed that the agency, in coordination with SpaceX, is targeting no earlier than 5 p.m. Eastern Time (2200 GMT) on Wednesday, January 14, for the undocking of the SpaceX Crew-11 mission from the International...

Neuralink Plans High-Volume Brain Implant Production and Fully Automated Surgery by 2026

Elon Musks brain-computer interface company Neuralink is preparing for a major expansion, announcing plans to begin high-volume production of its brain implant devices and transition to a fully automated surgical procedure...

Jared Isaacman Confirmed as NASA Administrator, Becomes 15th Leader of U.S. Space Agency

The U.S. Senate has officially confirmed billionaire private astronaut Jared Isaacman as the new NASA administrator, making him the 15th leader in the agencys history. The confirmation, which took place on Wednesday, marks...

Senate Sets December 8 Vote on Trump’s NASA Nominee Jared Isaacman

The U.S. Senate Commerce Committee announced it will vote on December 8 on President Donald Trumps renewed nomination of private astronaut and tech entrepreneur Jared Isaacman to lead NASA. Isaacman, known for his...

NASA Cuts Boeing Starliner Missions as SpaceX Pulls Ahead

NASA has significantly scaled back Boeings Starliner program after years of technical issues and delays, announcing that the next Starliner mission to the International Space Station (ISS) will fly without astronauts. The...

Technology

Global DRAM Chip Shortage Puts Automakers Under New Cost and Supply Pressure

Automakers worldwide are bracing for renewed cost pressures and potential production disruptions as a deepening global shortage of memory chips, particularly DRAM, intensifies due to surging demand from data centres and...

OpenAI Launches Stargate Community Plan to Offset Energy Costs and Support Local Power Infrastructure

OpenAI has officially unveiled its Stargate Community plan, a new initiative designed to ensure that the massive energy demands of its AI data centers do not drive up electricity costs for local communities. Announced on...

Nvidia CEO Jensen Huang Plans China Visit Amid AI Chip Market Uncertainty

Nvidia CEO Jensen Huang is reportedly planning a trip to China in late January as the company seeks to revive access to one of its most important markets for artificial intelligence chips. According to a Bloomberg News...

Elon Musk Says Tesla Cybercab and Optimus Production Will Start Slowly Before Rapid Growth

Tesla CEO Elon Musk has cautioned investors and technology enthusiasts that the early production rate of the companys highly anticipated Cybercab robotaxi and Optimus humanoid robot will be agonizingly slow before...

Micron to Buy Powerchip Fab for $1.8 Billion, Shares Surge Nearly 10%

Shares of Taiwans Powerchip Semiconductor Manufacturing Corp jumped nearly 10% on Monday following news that U.S. memory chip giant Micron Technology plans to acquire one of Powerchips fabrication facilities in Taiwan,...
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