Using quarterly data on initial public offerings (IPOs) and seasoned equity offerings (SEOs) for 37 countries from 1995 to 2014, we show that changes in equity issuance are positively related to lagged changes in aggregate local stock market liquidity. This relation is as economically significant as the well-known relation between equity issuance and lagged stock returns. It survives the inclusion of proxies for market timing, capital market conditions, growth prospects, asymmetric information, and investor sentiment. Changes in liquidity are less relevant for issuance by firms with greater financial pressures and by firms in less financially developed countries.

We examine how commonality in liquidity varies across countries and over time in ways related to supply determinants (funding liquidity of financial intermediaries) and demand determinants (correlated trading behavior of international and institutional investors, incentives to trade individual securities, and investor sentiment) of liquidity. Commonality in liquidity is greater in countries with and during times of high market volatility (especially, large market declines), greater presence of international investors, and more correlated trading activity. Our evidence is more reliably consistent with demand-side explanations and challenges the ability of the funding liquidity hypothesis to help us understand important aspects of financial market liquidity around the world, even during the recent financial crisis.