KnowledgeToday will be on a holiday break until the first week of January. To tide our readers over, here’s a roundup of this year’s most popular stories.

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Top Ten from 2011

Nassim Taleb on living with Black Swans

Mission Critical: 15 Principles to Help Leaders Meet Their Toughest Challenges

How Sustainable Is Groupon’s Business Model?

Tough Calls: How 40 CEOs Made Their Career-defining Decisions

A Bias against ‘Quirky’? Why Creative People Can Lose Out on Leadership Positions

Should Performance Reviews Be Fired?

Why Middle Managers May Be the Most Important People in Your Company

What’s Behind Microsoft’s $8.5 Billion Takeover of Skype?

Under Armour’s Kevin Plank: Creating ‘the Biggest, Baddest Brand on the Planet’

Gross Domestic Happiness: What Is the Relationship between Money and Well-being?

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New This Week

How Mortgage Lock-In Is Quietly Pushing Up House Prices

How Mortgage Lock-In Is Quietly Pushing Up House Prices

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A new paper co-authored by Wharton’s Lu Liu argues that homeowners stuck with low fixed mortgage rates aren’t just frozen in place — they’re propping up the housing market.

Does Q&A Boost Engagement?

Does Q&A Boost Engagement?

June 16, 20266 min read

When is friction a good thing? When it helps drive curiosity for more information, according to a Wharton study.

2026 Best Countries Index

2026 Best Countries Index

June 16, 202616 min read

The newly released 2026 Best Countries Index ranks 85 countries on 73 attributes across categories including entrepreneurship, openness for business, quality of life, power, and cultural influence.