Results 131 to 140 of about 20,730 (256)

Optimum Estimators for Parameters of Lognormal Distribution [PDF]

open access: yesThe Egyptian Statistical Journal, 1977
S.A. Shaban
doaj   +1 more source

Field Attraction of Natural Enemies to Methyl Salicylate Differs Between Annual and Perennial Cropping Systems

open access: yesJournal of Applied Entomology, EarlyView.
ABSTRACT Methyl salicylate (MeSA) is an herbivore‐induced plant volatile (HIPV) known to attract natural enemies of herbivores; however, its effectiveness as a semiochemical across diverse cropping systems and broad geographic regions remains unclear. In this 2‐year field study, we sampled natural enemies using MeSA‐baited and unbaited (control) yellow
Yahel Ben‐Zvi   +20 more
wiley   +1 more source

Freshwater hydrology emerges as the strongest predictor of phenological variability in a Southeast Alaska steelhead trout (Oncorhynchus mykiss) population

open access: yesJournal of Fish Biology, EarlyView.
Abstract Phenological variation, such as the migration trends of salmonids, may provide resilience in changing environmental scenarios, influencing individual survival and population productivity. Phenological shifts may be particularly consequential for anadromous species that rely on seasonal cues for migration between freshwater and marine habitats ...
Juliana C. Cornett   +3 more
wiley   +1 more source

Climate‐Neutrality Transition and Banks' Loan Pricing

open access: yesJournal of Financial Research, EarlyView.
Abstract In this paper, we propose a novel methodology to quantify firms' climate‐change transition risk (CCTR) and its implications for credit markets. We utilize the regulatory framework of the European Green Deal's 2050 carbon neutrality roadmap, focusing on large Eurozone firms and their banking relationships.
Evangelos Salachas   +2 more
wiley   +1 more source

The Evolution of Interest‐Rate Models: From the Yield Curve to the Swaption Cube

open access: yesJournal of Economic Surveys, EarlyView.
ABSTRACT Interest‐rate modelling is often taught as a catalogue of competing stochastic equations, obscuring why models were created and why modern sell‐side desks use several simultaneously. This survey reorganises the field around five layers of a pricing architecture: curve construction; arbitrage‐free dynamics; volatility‐smile representation ...
Xuan Feng   +2 more
wiley   +1 more source

A Unified Approach to Estimating Production Functions: Proxy Variables and Dynamic Panel Data

open access: yesThe Journal of Industrial Economics, EarlyView.
ABSTRACT We propose a new approach to production function estimation that integrates the strengths of the proxy‐variable (PV) and dynamic panel data (DPD) methods. Our framework augments the set of instruments for the level equation in Blundell and Bond [8] with a Berkson‐type instrument motivated by economic theory, following Olley and Pakes [28 ...
Jose Miguel Abito   +1 more
wiley   +1 more source

Contingent capital: A tale of two valuations

open access: yesJournal of Risk and Insurance, EarlyView.
Abstract This study investigates the valuation gap between buyers and sellers of insurers' contingent capital, driven by asymmetric exposures to tax benefits, capital injections, and bankruptcy costs. We develop a novel Twin‐Tree Model with Jumps (TTMJ) that models the insurer's asset value dynamics by incorporating catastrophe risk, insolvency risk ...
Tian‐Shyr Dai   +3 more
wiley   +1 more source

The Returns to Education: A Reply

open access: yesKyklos, EarlyView.
ABSTRACT In this response to Lee Crawfurd's comment on The Returns to Education: A Meta‐Study, we address his three main criticisms. We contend that estimates based on compulsory schooling laws constitute the most reliable evidence on causal returns to education. We show that our parsimonious approach to correcting for publication bias is preferable to
Gregory Clark   +1 more
wiley   +1 more source

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