Results 111 to 120 of about 13,866 (306)
The Substitutability of Debt and Equity Securities [PDF]
This paper investigates empirically the degree of substitutability between debt and equity securities in the United States during 1960-1980. The analysis first applies fundamental relationships connecting portfolio choices with expected asset returns to ...
Benjamin M. Friedman
core
Workplace Presenteeism, Job Substitutability and Gender Inequality
, 2021 Following the arrival of the first child, women's absence rates soar and become less predictable. This fall in workplace presenteeism harms women's wages, especially in jobs with low substitutability.
Rosenqvist, Olof +2 more
core +1 more source
Journal of Advanced TransportationEmerging multilayer rail networks in metropolitan areas, comprising multiple service types and suppliers, pose new spatial challenges for operation and governance due to underlying cooperative and competitive dynamics.
Huazhen Lin, Ruihua Xu
doaj +1 more source
Structural and biochemical analysis of a B12 superbinder
FEBS Letters, EarlyView.BtuG proteins are vitamin B12 scavengers in Bacteroides thetaiotaomicron, a dominant human gut bacterium. We present crystal structures of three BtuG homologs bound to cobalamin and its precursor cobinamide, revealing picomolar binding affinities, among the highest known for any natural protein.
Jose M. Martinez Felices +3 more
wiley +1 more source
Market Structure and Productivity: A Concrete Example [PDF]
Many studies have documented large and persistent productivity differences across producers, even within narrowly defined industries. This paper both extends and departs from the past literature, which focused on technological explanations for these ...
Chad Syverson
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Climate change mitigation, sustainability and non-substitutability [PDF]
, 2017 Climate change policy decisions are inescapably intertwined with future generations. Even if all carbon dioxide emissions were to be stopped today, most aspects of climate change would persist for hundreds of years, thus inevitably raising questions of ...
Hormio, Säde
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Vertical and horizontal (mis)match of university degrees in the Hungarian labour market
Humanities & Social Sciences CommunicationsIn the fourth industrial revolution, higher education institutions (HEIs) face numerous new challenges. The changing circumstances impact the economy and the labour market, bringing new competencies to the forefront.
Zsuzsanna Kiss
doaj +1 more source
FEBS Letters, EarlyView.How do genomes gain new functional parts? In eukaryotes, which tend to evolve under weak selection, much of the genome is junk. Palazzo and Qiu borrow the logic of Markov chains to show how non‐functional DNA becomes functional through the appearance of intermediate states, which arise due to epistasis, buffering, and biochemical messiness, allowing ...
Alexander F. Palazzo, Yi Qiu
wiley +1 more source
The Shewanella oneidensis Fic enzyme SoFic targets the switch‐I region of EF‐Tu for AMPylation
FEBS Letters, EarlyView.Fic enzymes mediate diverse post‐translational modifications across all domains of life, including AMPylation. Prokaryotic EF‐Tu can be AMPylated and deAMPylated by the conserved Fic enzyme SoFic. Structural and biochemical approaches were used to characterize the effect of AMPylation on EF‐Tu, SoFic's enzymatic activities, and the enzyme‐target ...
Svenja Runge +6 more
wiley +1 more source
Gross Substitutability Mappings in Economic Equilibrium Theory [PDF]
A survey of the results relating to the application of gross substitutability in economic equilibrium theory. The topics considered include existence and uniqueness of equilibrium, comparative statics, coalition stability, and stability of price ...
Polterovich, Victor, Spivak, Vladimir
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