The aim of this study is to examine the relationship between the economic development of the 11 OECD countries selected in the period 1990-2018, banking sector performance and financial globalization by integrating investments and trade openness as explanatory variables. The cointegration between variables is investigated by Pedroni, Kao and Westerlund tests and the long-term coefficients are determined by Driscoll-Kraay standard errors forecasters. Finally, the causality relationship between variables is tested in the Dumitrescu-Hurlin panel bootstrap approach. Empirical findings indicate the existence of cointegration between variables. The banking sector performance, financial globalization and investments have a statistically significant positive effect on economic development, while the trade openness has a meaninglessly positive effect. They also indicate a two-way causality between the economic development and banking sector performance and investments, and a one-way causality running from trade openness to economic development. Therefore, the findings make political recommendations for both policymakers and future studies.