Business

What the mean-variance theory says about holding 300 stocks

What the mean-variance theory says about holding 300 stocks

Under mean-variance portfolio theory, the optimal level of diversification today exceeds 300 stocks. The average investor holds three or fou...
Can machine learning models beat analysts in earnings predictions?

Can machine learning models beat analysts in earnings predictions?

Analysts' long-run earnings growth forecasts are less accurate than a naive model that simply predicts zero growth. That is not a provocatio...
The top 10 industries where artificial intelligence is creating new employment opportunities

The top 10 industries where artificial intelligence is creating new employment opportunities

Artificial intelligence is fueling the need for professionals who design computing infrastructure, engineer and protect AI systems, curate d...
Flock Safety’s license plate readers raise privacy alarms in Atlanta

Flock Safety’s license plate readers raise privacy alarms in Atlanta

Audits, a proposed city ordinance and a push in Washington are testing the license plate reader maker in the city where it was founded. Floc...
Binance customers pull billions after withdrawal services restart

Binance customers pull billions after withdrawal services restart

The exchange says it has replaced most of the stolen crypto from its own funds, but customers pulled out $3.6 billion more than they put in ...
Which countries have the lowest price-to-income ratio for home buying?

Which countries have the lowest price-to-income ratio for home buying?

South Africa, Saudi Arabia, the United States, Oman, the United Arab Emirates, Qatar, Bahrain, Kuwait, Denmark, and Belgium offer a helpful ...