Nikolaj Moretti

Nikolaj Moretti

PhD candidate at PIK Potsdam and the University of Potsdam

Posts by Collection

portfolio

publications

Interaction effects between dynamic hybrid products and traditional deferred annuities in the German life insurance market

Moretti, N., Bartels, J., published in Financial Markets and Portfolio Management, 2021

In this paper, we study interaction effects between dynamic hybrid products and traditional deferred annuity contracts that are sold by the same insurance company. We build a model including a detailed representation of the profit participation mechanism and analyse it using a Monte Carlo simulation.

talks

teaching

Macroeconomics (Teaching Assistant)

Graduate and Undergraduate course, Friedrich Schiller Universität Jena, Department of Economics, 2020

In the autumn of 2020, I worked as a teaching assistant at Friedrich Schiller Universität Jena. I held the exercise for macroeconomics on both undergraduate and graduate level. Since the exercises took place online, I gathered experience in remote teaching.

Economics of Climate Change (Teaching Assistant)

Exercise, University of Potsdam, Department of Economics and Social Sciences, 2021

In the autumn of 2021, I worked as a teaching assistant at University of Potsdam. I held the exercise for the graduate lecture “Economics of Climate Change” including an introduction to coding with JULIA.

Climate Economics and Policy (Teaching Assistant)

Exercise, University of Potsdam, Department of Economics and Social Sciences, 2023

In the autumn of 2022 and 2023, I worked as a teaching assistant at University of Potsdam. I held the exercise for the undergraduate lecture “Climate Economics and Policy”.

work_in_progress

Overcoming the Climate Policy Dilemma: The Role of Debt and Redistribution under Intergenerational Borrowing Constraints

Published:

We investigate the effect of (intergenerational) borrowing constraints on climate policy in a simple political economy model where households differ in income. Binding borrowing constraints increase implicit discount rates. We analyze how intra- and intergenerational transfers can increase support for climate policy. (With Matthias Kalkuhl and Maximilian Kellner)

workingpapers

Fiscal Policy and Energy Price Shocks

Blanz, A., Eydam, U., Heinemann, M., Kalkuhl, M., Moretti, N., published in CEPA Discussion Paper, 2023

In this paper, we analyse the effect of different fiscal policy measures in response to a non-anticipated energy price shock in a real-business-cycle model with heterogeneous households differing ith respect to their energy consumption and savings capacity.

Trading deficits for investment: Optimal deficit rules for present-biased governments

Bergmann, T. Moretti, N., published in CEPA Discussion Paper, 2025

In this paper, we characterize the optimal deficit-rule for a present-biased government, accounting for the distortion of long-term investment it induces. We analyze the effect of a shock to the productivity of investment on the optimal deficit-cap. Furthermore, we compare the welfare outcome of a balanced budget rule, the absence of any deficit rule, and a benchmark deficit rule.

A Green-Golden Rule for Climate Policy

Edenhofer, O.; Eydam, U.; Heinemann, M.; Kalkuhl, M.; Moretti, N., published in ‘SSRN’, 2025

We elaborate a fiscal rule that conditions the admissible deficit for a government on the observed reduction in carbon emissions based on a welfare economic framework. We call this adaptation of the classical “golden rule of public finance” to the climate context “green-golden rule”. The conceptualization of climate-investment as reduction in carbon emissions has a key advantage: Carbon emissions are measurable in t/CO2 and homogeneous with returns given by the Social Cost of Carbon. This makes it possible to overcome the major criticisms to the golden rule, namely the difficulty to assess the returns on public investment and the vagueness of the definition of invesmtent and the connected “creative accounting critique”. We quantify a quantity version and a price version of the rule for the case of Germany.