نتایج جستجو برای: e23

تعداد نتایج: 225  

ژورنال: :مجله تحقیقات اقتصادی 2014
زهرا عادل برخوردار یدالله سبوحی

یکی از منابع اصلی اطلاعات به­کارگرفته شده در مدل­های تعادل عمومی که باید عدم قطعیت مرتبط با آن شناسایی شود، ساختار تابعی به کار گرفته شده در مدل است. تحلیل حساسیت نسبت به فرم تابعی می تواند تخمینی از عدم قطعیت­های موجود، که ناشی از فرم انتخاب­شدة تابعی هستند، در اختیار قرار دهد. در مدل­های تعادل عمومی، استفاده از مقادیر کشش به­دست­آمده در مطالعات دیگران مرسوم است. در این حالت، فرم تابعی انتخاب­...

2014
Ye Ma Herman de Jong

This paper provides the first estimates of purchasing power parity (PPP) converters from the production side between China and the UK for the early 1910s. It gives a new starting point to evaluate the economic development in pre-modern China during the early industrialization since the late 19 th century. The estimated PPPs for manufacturing industries provide relative levels of producer prices...

2011
Melvyn G. Coles Dale T. Mortensen

Equilibrium Wage and Employment Dynamics in a Model of Wage Posting without Commitment A rich but tractable variant of the Burdett-Mortensen model of wage setting behavior is formulated and a dynamic market equilibrium solution to the model is defined and characterized. In the model, firms cannot commit to wage contracts. Instead, the Markov perfect equilibrium to the wage setting game, charact...

2009
Andrew T. Foerster Pierre-Daniel G. Sarte Mark W. Watson

This paper uses factor analytic methods to decompose industrial production (IP) into components arising from aggregate shocks and idiosyncratic sector-specific shocks. An approximate factor model finds that nearly all (90%) of the variability of quarterly growth rates in IP are associated with common factors. Because common factors may reflect sectoral shocks that have propagated by way of inpu...

2013
K E Karlsson C Vong M Bergstrand E N Jonsson M O Karlsson

Drug development struggles with high costs and time consuming processes. Hence, a need for new strategies has been accentuated by many stakeholders in drug development. This study proposes the use of pharmacometric models to rationalize drug development. Two simulated examples, within the therapeutic areas of acute stroke and type 2 diabetes, are utilized to compare a pharmacometric model-based...

2016
Iván Alfaro Nicholas Bloom Xiaoji Lin

We show theoretically and empirically how real and financial frictions amplify the impact of uncertainty shocks on firms’investment, employment, debt (term structure of debt growth), and cash holding. We start by building a model with real and financial frictions, alongside uncertainty shocks, and show how adding financial frictions to the model almost doubles the negative impact of uncertainty...

2007
Weiqi Tang Libo Wu

A considerable body of economic literature shows the adverse economic impacts of oil-price shocks for the developed economies. However, there has been a lack of empirical study of this kind on China and other developing countries. This paper attempts to fill this gap by answering how and to what extent oil-price shocks impact China’s economy, emphasizing on the price transmission mechanisms. To...

2012
Eduard Gracia

A popular interpretation of the Rational Expectations/Efficient Markets hypothesis states that, if it holds, market valuations must follow a random walk; hence, the hypothesis is frequently criticized on the basis of empirical evidence against such a prediction. Yet this reasoning incurs what we could call the ‘fallacy of probability diffusion symmetry’: although market efficiency does indeed i...

2011
Cristiano Cantore Paul Levine

We contribute to a recent literature on the normalization, calibration and estimation of CES production functions. The problem arises because CES ‘share’ parameters are not in fact shares, but depend on underlying dimensions they are ‘dimensional constants’ in other words. It follows that such parameters cannot be calibrated, nor estimated unless the choice of units is made explicit. We use an ...

Journal: :European journal of protistology 2010
Qianqian Zhang Zhenzhen Yi Weibo Song Khaled A S Al-Rasheid Alan Warren

Traditionally the unusual ciliate Paraspathidium has been regarded as a gymnostome haptorid (Litostomatea) based on its morphological features. In order to test this placement, the small-subunit (SSU) rRNA gene was sequenced for two isolates of Paraspathidium apofuscum and phylogenetic trees were constructed. Furthermore, the putative structure of the variable regions 2 and 4 of the SSU rRNA ge...

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