Encouraging innovation is an important part of environmental policy. A large literature in environmental economics examines the links between environmental policy and innovation. This paper reviews recent literature on green innovation. I highlight major trends in the literature, including an...

We discuss recent work evaluating the role of the government in shaping the economy during the long 19th century, a practice we refer to as industrial policy. We show that states deployed a vast variety of different policies aimed at, primarily, but not exclusively, fostering industrialization....

Randomized experiments provide policy relevant treatment effects if there are no spillovers between participants and nonparticipants. We show that this assumption is violated for a Danish activation program for unemployed workers. Using a difference-in-difference model we show that the...

The Danish labour market has undergone a remarkable change during the 1990s with a reduction of the unemployment rate from about 12 per cent in 1993 to less than 6 per cent at the turn of the century. This reflects both a turn in the business cycle but also structural changes related to shifts...