TY - UNPB
T1 - Identifying technological trajectories in the mining sector using patent citation networks
T2 - A text-similarity measure
AU - Alessandri, Enrico
PY - 2021/12/8
Y1 - 2021/12/8
N2 - This paper uses patent citation networks to study technological change in the mining industry between 1970 and 2015. The analysis is undertaken at both the aggregate level by jointly considering all mining-related technological fields, and at the micro-level of patents in nine sub-fields, representing specific technological "sub-trajectories". Consistent with previous literature focused on other technological domains, we find that innovation patterns in the mining sector are "technology bounded", i.e. largely shaped by patenting activities carried out in a very limited range of mining technological fields, even though we detect a shift from exploration to environmental mining technologies (emergence of a new technological paradigm). In addition, we examine two
AB - This paper uses patent citation networks to study technological change in the mining industry between 1970 and 2015. The analysis is undertaken at both the aggregate level by jointly considering all mining-related technological fields, and at the micro-level of patents in nine sub-fields, representing specific technological "sub-trajectories". Consistent with previous literature focused on other technological domains, we find that innovation patterns in the mining sector are "technology bounded", i.e. largely shaped by patenting activities carried out in a very limited range of mining technological fields, even though we detect a shift from exploration to environmental mining technologies (emergence of a new technological paradigm). In addition, we examine two
KW - Technological trajectories
KW - Technological sub-trajectories
KW - Mining technologies
KW - Geography of innovation
KW - Patents
KW - International technological frontier
M3 - Working paper
T3 - UNU-MERIT Working Papers
BT - Identifying technological trajectories in the mining sector using patent citation networks
PB - UNU-MERIT
CY - Maastricht
ER -