Climate change must deal with two market failures: global warming and learning by doing in renewable use. The first-best policy consists of an aggressive renewables subsidy in the near term and a gradually rising and falling carbon tax. Given that global carbon taxes remain elusive, policy...

I study several policy instruments for carbon mitigation with a focus on subsidies for renewable energies, emission taxes and emission allowances. In Chapter 1, I analyze the optimal design and the welfare implications of two policies consisting of an emission tax for conventional fossil-fuel...

This paper investigates the sources of wage growth over the life cycle, where individuals have the possibility to acquire vocational training at the start of their career. Wage growth is determined by sectoral and firm mobility, unobserved ability and the accumulation of human capital. Workers...

Workers acquire skills through formal schooling, through training provided by governments, and through training provided by firms. This chapter reviews, synthesizes, and augments the literature on the last of these, which has languished in recent years despite the sizable contribution of firm...

Here I map Big Tech clouds focusing on the making of asymmetric relations with the different type of involved organizations. Amazon, Microsoft, Google and Alibaba are cloud hegemons that control every inch of their clouds. The cloud is the main means of adoption of digital technologies. As such,...

This paper argues that growth theory needs a more general notion of 'regularity' than that of exponential growth. We suggest that paths along which the rate of decline of the growth rate is proportional to the growth rate itself deserve attention. This opens up for considering a richer set of...

We develop a model with two types of electricity producers, fossil fuel utilities generating emissions, and suppliers of electricity from renewable resources such as wind energy. We account for the vertical structure of the wind-energy sector by considering wind-turbine producers engaged in...

Since central banks have limited information concerning the transmission channel of monetary policy, they are faced with the difficult task of simultaneously controlling the policy target and estimating the impact of policy actions. A tradeoff between estimation and control arises because policy...