GroupM predicts global advertising revenue will grow 7.8% in 2024 to $989.8 billion; OOH will grow 11.5% (GroupM)

We estimate that global advertising revenue will grow 7.8% in 2024 to $989.8 billion. The industry will surpass one trillion in revenue in 2025, increasing 6.8% to $1.1 trillion, one year earlier than we forecast in December of 2023. […]