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Graduate Studies

Three Essays on Labour and Public Economics

Abstract

dc:description.abstract

The first chapter studies how the nature of export-demand shocks shapes the adjustment of firms and workers. Using Canadian linked employer-employee data for 2005--2019, I construct firm-specific exposure to global demand shifts during the Great Recession and develop a decomposition of export shocks into destination-wide, product-wide, and firm-specific components. Destination shocks have much larger and more persistent effects than product shocks, reducing firm exports by about 0.7 percent and employment by 0.2 percent per one percent decline in foreign demand, roughly twice the impact of product shocks. Destination shocks also induce firms to diversify across markets, while product shocks lead to scope contraction. Despite firm recovery, workers experience lasting income losses. A one percent drop in destination demand lowers long-run earnings by about 0.4 percent, with product and firm-specific shocks generating effects about half as large. Although destination shocks account for a smaller share of total demand variation, their per-unit impact is far larger, revealing a structural vulnerability to geographic export concentration. The second chapter, co-authored with Stefan Staubli and Qiongda Zhao, studies the long-run effects of changing the early eligibility age (EEA) for old-age pensions, a common policy to alleviate fiscal pressure on public pension systems. While prior work has focused on short-term labor supply effects, we examine long-term impacts on economic well-being and poverty using two Canadian reforms in the 1980s that lowered the EEA from 65 to 60. Leveraging rich administrative tax data and a difference-in-differences design, we track affected cohorts throughout their retirement until death. We find that a one-year EEA reduction lowers the average claiming age by 0.23 years, with no effect on pension claiming among spouses or children. Early claiming raises short-term pension income but reduces it later, keeping lifetime pension income unchanged but spread out over more years. Total income is stable early in retirement and declines later due to lower pension payments. Overall, the EEA reduction in the 1980s compressed income disparities and significantly reduced elderly poverty among low-income retirees. The third chapter, co-authored with Jean-William Laliberté and Stefan Staubli, examines the multigenerational impact of children and whether the public provision of formal childcare lessens the earnings and employment impacts of children. We find that the arrival of a firstborn reduces employment and earnings of mothers and employment of grandmothers. Studying a universal childcare program in Quebec, we find that formal childcare increases the employment rates of mothers as well as that of grandmothers to a lesser extent. Examining heterogeneity of the program’s impact across census divisions, we find a negative correlation between the positive effects on mothers’ employment and the prepolicy supply of informal childcare by grandmothers.

Degree

thesis:*
Name thesis:degree_name
Doctor of Philosophy (PhD)
Discipline thesis:degree_discipline
Economics
Grantor dc:publisher.institution
Graduate Studies
Year dc:date.issued
2026

Author and committee

dc:creator, dc:contributor.*
Author dc:creator
  • Karademir, Sencer
Advisor dc:contributor.advisor
  • Staubli, Stefan
Committee members dc:contributor.committeemember
  • Whalley, Alex
  • Laliberté, Jean-William

Subjects

dc:subject × 10

Rights

dc:rights
Statement dc:rights
  • University of Calgary graduate students retain copyright ownership and moral rights for their thesis. You may use this material in any way that is permitted by the Copyright Act or through licensing that has been assigned to the document. For uses that are not allowable under copyright legislation or licensing, you are required to seek permission.
Language dc:language.iso
en

Identifiers

dc:identifier.*
OAI identifier oai:identifier
oai:ucalgary.scholaris.ca:1880/125427

Chain of custody

source
Harvested from
University of Calgary
Base URL
ucalgary.scholaris.ca/server/oai/request
Last updated
2026-07-24
Source record
OAI-PMH GetRecord
citation

Karademir, Sencer. Three Essays on Labour and Public Economics. Graduate Studies, 2026. https://hdl.handle.net/1880/125427