Bartik Instruments: What, When, Why, and How
Paul Goldsmith-Pinkham, Isaac Sorkin, Henry Swift
The Bartik instrument is formed by interacting local industry shares and national industry growth rates. We show that the typical use of a Bartik instrument assumes a pooled exposure research design, where the shares measure differential exposure to common shocks, and identification is based on exogeneity of the shares. Next, we show how the Bartik instrument weights each of the exposure designs. Finally, we discuss how to assess the plausibility of the research design. We illustrate our results through two applications: estimating the elasticity of labor supply, and estimating the elasticity of substitution between immigrants and natives. (JEL C51, F14, J15, J22, L60, R23, R32)
DEPARTMENT OF ECONOMICS WORKING PAPER SERIES Effects of U.S. Banking Deregulation on Unemployment Dynamics
B. Unel
Flexible Automation and Intelligent Manufacturing , FAIM 2017 , 27-30 June 2017 , Modena , Italy A review of the roles of Digital Twin in CPS-based production systems
Elisa Negria, Luca Fumagallia, M. Macchia
Corporate Sustainability: First Evidence on Materiality
Mozaffar Khan, G. Serafeim, Aaron S. Yoon
ABSTRACT: Using newly available materiality classifications of sustainability topics, we develop a novel dataset by hand-mapping sustainability investments classified as material for each industry ...
Profits and pandemics: prevention of harmful effects of tobacco, alcohol, and ultra-processed food and drink industries.
R. Moodie, D. Stuckler, C. Monteiro
et al.
1503 sitasi
en
Business, Medicine
Disruptive Technologies: Catching the Wave
J. L. Bower, Clayton M. Christensen
CUSTOMER POWER, STRATEGIC INVESTMENT, AND THE FAILURE OF LEADING FIRMS
Clayton M. Christensen, J. L. Bower
Entrepreneurship in the large corporation: a longitudinal study of how established firms create breakthrough inventions
G. Ahuja, Curba Morris Lampert
Mastering the Dynamics of Innovation
James M. Utterback
3091 sitasi
en
Engineering
Materials Properties Handbook: Titanium Alloys
R. Boyer, G. Welsch, E. Collings
2552 sitasi
en
Materials Science
Assessing the Contribution of Venture Capital to Innovation
Samuel Kortum, J. Lerner
The Future of the University and the University of the Future: Evolution of Ivory Tower to Entrepreneurial Paradigm
H. Etzkowitz, A. Webster, C. Gebhardt
et al.
What drives merger waves
J. Harford
Syndication Networks and the Spatial Distribution of Venture Capital Investments1
O. Sorenson, Toby E. Stuart
1834 sitasi
en
Business, Economics
Blue ocean strategy.
W. C. Kim, Renée Mauborgne
2478 sitasi
en
Engineering, Economics
Environmental Regulation and Innovation: A Panel Data Study
A. Jaffe, K. Palmer
ECONOMIC LOSSES FROM HEAT STRESS BY US LIVESTOCK INDUSTRIES
N. St-Pierre, B. Cobanov, G. Schnitkey
1685 sitasi
en
Environmental Science
Spatiotemporal heterogeneity and driving forces of construction carbon emissions in transitional regions: evidence from six provinces in Central China
Yinkai Wei, Wudong Ban
This study explores the spatiotemporal patterns of construction carbon emissions in Central China (Anhui, Shanxi, Jiangxi, Henan, Hunan, Hubei) under China's carbon peak and neutrality goals. Using certified construction data, NPP–VIIRS nighttime light data, energy statistics, and socioeconomic panel data from 2012 to 2025, we examine emission dynamics and spatial heterogeneity. Results show that total emissions reached 1.039 billion tons of CO₂ equivalent, with Shanxi accounting for over 20%. Spatial clustering exhibited a fluctuating downward trend, with High–High clusters in Shanxi and northern Henan, and Low–Low clusters in southern Anhui, western Hubei, and northern Jiangxi. Geodetector results reveal that regional GDP and secondary industry output were dominant drivers, and their interactions with population and technology investment reached a maximum q‑statistic of 0.98. These findings support targeted low-carbon policies for the construction sector in transitional regions.
The role of audit report lag on the relationship between auditor industry specialization and audit fees
Gholamreza Soleimani Amiri, Neda Pourgholamreza
Objective: “The purpose of this study is to investigate the effect of auditor industry specialization on audit fees and audit report lag. In addition, this study examines the effect of audit report lag on the relationship between auditor industry specialization and audit fees”. Method: “In this research, the data of 132 companies admitted to the Tehran Stock Exchange during the period from 2014 to 2023 were used. Also, in this research, Standard Audit Fee Model and multivariate linear regression with fixed effects has been used”.Results: “The results showed that the auditor industry specialization does not affect the audit fee. However, the auditor industry specialization has a significant effect on the audit fees by mediating the audit report lag. Also, the results have shown a significant negative effect of the auditor's specialization in the industry on the audit report lag”.Conclusions: “In general, this research shows that companies that contract with audit firms with specialization in the industry pay less due to the expertise of the audit firm and the timeliness and brevity of their audit reports”.
Assessing Dietary Exposure Risk to Food Preservatives Among the Eating-Out Population in Taiwan Using the Total Diet Study Method
Hao-Hsiang Ku, Shih-Cheng Yang, Huai-An Hsiao
et al.
In recent years, due to the rapid pace of urbanization and increasingly hectic modern lifestyles that leave little time for home cooking, more and more people prefer to dine at food stands, restaurants, or supermarkets due to convenience. This type of people are often called the eating-out population. The general public may have a concept that most of the food items consumed by people eating out are first prepared for storage by vendors and are likely to contain more food preservatives. Excessive exposure to benzoic acid (BA), sorbic acid (SA), and dehydroacetic acid (DHA), which account for the highest number of violations of the amount of preservatives permitted in food, may cause potential human health risk. The purpose of this study was to investigate the human health risks of consuming preservatives used in food among for Taiwanese people who eat out. We applied the total diet study (TDS) method to analyze the concentrations of BA, SA, and DHA in the food items frequently consumed when people dine outside. The hazard index in percent acceptable daily intake (%ADI) of BA and SA for four exposure groups classified by age were calculated. In high-intake consumers, the highest hazard index of BA was 2.5%ADI for the 6–9 years old age group of the eating-out population, which still fell within the acceptable risk range. In addition, the risk appeared to be decreasing year-on-year, which may be related to year-on-year improvements of the way food products are processed in the food industry.