This paper provides preliminary evidence on the effects of membership in a business angel network (BAN) on the investment decisions of the members. Using a novel dataset containing qualitative and quantitative information on 810 angel or angel-group backed investments in 619 companies by 330 unique business angels from 2008 to 2014, we show that BAN membership generates valuable information, networking, monitoring, and risk reduction effects, which ultimately affect the share of personal wealth committed by each angel investor and their equity stake in the targeted company. These results extend our knowledge of the investment behavior and characteristics of business angels, a relatively opaque funding source that is rapidly gaining prominence in support of new ventures and the development of the global economy.

This paper sheds light over the operations and internal structure of business angel groups (BAGs), a leading actor inside the informal venture capital industry, due to its capability to build cognitive resources and shared competencies that are eventually provided to funded ventures alongside equity capital. We develop a framework based on the role of business angels' decision-making style, human capital and motivation as major determinants of their active involvement in the many different activities performed by angel groups, either investment related activities or group management activities. Our empirical analysis relies on a novel survey-based dataset containing qualitative and quantitative information provided by the members of two large and rather homogeneous business angel groups located in France and in Italy. Results show that business angels with a control-oriented decision-making style tend to be more actively involved in key angel group activities. Human capital built through investment experience, retirement status, as well as initial motivation to join an angel group are also significant drivers of angel involvement in several key BAG activities.