Ulla Lehmijoki has acted as Senior Lecturer of Microeconomics and as a research fellow in the University of Helsinki since 1996. She holds Ph.D. in Economics from the University of Helsinki. Her current research interests include the following topics: (i) the effects of demographic factors on economic growth, (ii) the factors dictating life expectancy convergence, (iii) the demographic and economic effects of trade shocks in developing countries, and (iv) air pollution mortality, in particular in Europe. Her publications include articles in Scandinavian Journal of Economics and Journal of Population Economics.

She joined IZA as a Research Fellow in May 2009.

Ulla Lehmijoki has (co-authored with Tapio Palokangas) published three articles in Journal of Population Economics:
"Political Instability, Gender Discrimination, and Population Growth in Developing Countries" 19(2006), "Population Growth Overshooting and Trade in Developing Countries" 22(2009) and "Trade, Population Growth, and the Environment in Developing Countries" 23(2010).



IZA Discussion Paper No. 10465

This article examines pollution and environmental mortality in an economy where fertility is endogenous and output is produced from labor and capital by two sectors, dirty and clean. An emission tax curbs dirty production, which decreases pollution-induced mortality but also shifts resources to the clean sector. If the dirty sector...

IZA Discussion Paper No. 8054
revised version published as "Landowning, Status and Population Growth" as pages 315-328 in: Dynamic Optimization in Environmental Economics. Edited by E. Moser, W. Semmler, G. Tragler and V.M. Veliov. Heidelberg: Springer Verlag 2014.

In this document, we consider the effects of a land reform on economic and demographic growth by a family-optimization model with sharecropping, endogenous fertility and status seeking. We show that tenant farming is the major obstacle to escaping the Malthusian trap with high fertility and low productivity. A land reform...

IZA Discussion Paper No. 5469

The demographic transition is introduced into the otherwise standard Ramsey model to generate multiple equilibria, poverty traps, and demography-driven cycles. The model is calibrated for global data to explore the demographic conditions under which multiplicity is realized. Three cases arise, referring either to unique or multiple equilibria, and to transitional...

IZA Discussion Paper No. 5422

Since World War II, mortality has declined in the developing world. This paper examines the effects of this mortality decline on demographic and economic growth by a family-optimization model, in which fertility is endogenous and wealth yields utility through its status. The decline in mortality stimulates investment and generates an...