Ewa Lechman is a professor of economics, employed at Faculty of Management and Economics, Gdańsk University of Technology/Fahrenheit Universities. Her research interests concentrate on economic development, digital technologies and technological progress, and its role in reshaping social and economic systems, as well as economics of network and innovative financial instruments.Adam Marszk is associate professor at Faculty of Management and Economics, Gdansk University of Technology. His research focuses on financial innovations, financial markets, sustainable investing, financial systems in underdeveloped economies, economic integration and portfolio management.

• Chapter 1. Introduction1.1 Context and background1.2 Goals1.3 StructureChapter 2. Digital technologies as network technologies.2.1 On the significance of network technologies. A brief historical perspective.2.2 Networks and network externalities as technology diffusion drivers.Chapter 3. Empirical underpinnings 3.1 The sample3.2 Methodological settings.Chapter 4. Tracing technology convergence and network effects. 4.1 General overview4.2 Technology convergence and technology convergence clubs.4.3 Network externalities as a driver of technology diffusion.Chapter 5. Conclusions and policy implications.5.1 What have we learnt from this book?.5.2 Digital convergence or divergence? Drawing the “big picture”.

Ewa Lechman is a professor of economics, employed at Faculty of Management and Economics, Gdańsk University of Technology/Fahrenheit Universities. Her research interests concentrate on economic development, digital technologies and technological progress, and its role in reshaping social and economic systems, as well as economics of network and innovative financial instruments.Adam Marszk is associate professor at Faculty of Management and Economics, Gdansk University of Technology. His research focuses on financial innovations, financial markets, sustainable investing, financial systems in underdeveloped economies, economic integration and portfolio management.

• Chapter 1. Introduction1.1 Context and background1.2 Goals1.3 StructureChapter 2. Digital technologies as network technologies.2.1 On the significance of network technologies. A brief historical perspective.2.2 Networks and network externalities as technology diffusion drivers.Chapter 3. Empirical underpinnings 3.1 The sample3.2 Methodological settings.Chapter 4. Tracing technology convergence and network effects. 4.1 General overview4.2 Technology convergence and technology convergence clubs.4.3 Network externalities as a driver of technology diffusion.Chapter 5. Conclusions and policy implications.5.1 What have we learnt from this book?.5.2 Digital convergence or divergence? Drawing the “big picture”.

Ewa Lechman is a professor of economics, employed at Faculty of Management and Economics, Gdańsk University of Technology/Fahrenheit Universities. Her research interests concentrate on economic development, digital technologies and technological progress, and its role in reshaping social and economic systems, as well as economics of network and innovative financial instruments.Adam Marszk is associate professor at Faculty of Management and Economics, Gdansk University of Technology. His research focuses on financial innovations, financial markets, sustainable investing, financial systems in underdeveloped economies, economic integration and portfolio management.

• Chapter 1. Introduction1.1 Context and background1.2 Goals1.3 StructureChapter 2. Digital technologies as network technologies.2.1 On the significance of network technologies. A brief historical perspective.2.2 Networks and network externalities as technology diffusion drivers.Chapter 3. Empirical underpinnings 3.1 The sample3.2 Methodological settings.Chapter 4. Tracing technology convergence and network effects. 4.1 General overview4.2 Technology convergence and technology convergence clubs.4.3 Network externalities as a driver of technology diffusion.Chapter 5. Conclusions and policy implications.5.1 What have we learnt from this book?.5.2 Digital convergence or divergence? Drawing the “big picture”.