scholarly journals What did it take for Lucas to set up ‘useful’ analogue systems in monetary business cycle theory?

2021 ◽  
Vol 7 (3) ◽  
pp. 61-82
Author(s):  
Peter Galbács

This paper provides a look into what Lucas meant by the term ‘analogue systems’ and how he conceived making them useful. It is argued that any model with remarkable predictive success can be regarded as an analogue system, the term is thus neutral in terms of usefulness. To be useful Lucas supposed models to meet further requirements. These prerequisites are introduced in two steps in the paper. First, some properties of ‘useless’ Keynesian macroeconometric models come to the fore as contrasting cases. Second, it is argued that Lucas suggested two assumptions as the keys to usefulness for he conceived them as referring to genuine components of social reality and hence as true propositions. One is money as a causal instrument and the other is the choice-theoretic framework to describe the causal mechanisms underlying large-scale fluctuations. Extensive quotes from Lucas’s unpublished materials underpin the claims.

1986 ◽  
Vol 26 (251) ◽  
pp. 115-124

In January and February, the ICRC reduced, as planned, the level of its relief activities in Ethiopia. This reduction was made possible, on the one hand, by an increase in food supplies for the population in the northern provinces of that country affected by conflict and drought and, on the other, by more intensive activity on the part of other voluntary agencies in the area. While leaving in place the structures which would enable it rapidly to set up a large-scale assistance programme if the need were to appear in a given region, the ICRC has lowered the volume of its general relief distributions. In December 1985, 10,700 tonnes were distributed to 830,000 persons. This was reduced to 5,000 tonnes for 424,300 persons in January, and further to 2,800 tonnes for 181,000 persons in February in the provinces of Eritrea, Tigray, Wollo, Gondar and Hararge. The last three therapeutic feeding centres were closed on 16 January (Wukro), and on 16 and 27 February (Idaga Hamus and Adwa). However, ICRC medical teams continued to monitor the health of the populations living in provinces which were receiving assistance, concentrating their activities on groups of displaced persons in Eritrea (in the region between Keren and Barentu), Tigray (in the region between Aksum and Adwa and the region of Mehony), Wollo (in the region of Sekota) and Hararge (Wobera Woreda; Habro Woreda), all areas with major security problems.


2021 ◽  
Vol 28 (3) ◽  
pp. 577-594
Author(s):  
Estela Bee Dagum

This is a brief introduction to the special issue on “New Developments in Modelling and Estimation of Economic Cycles” . The concept and definition of economic and business cycles are discussed together with two main schools of thought, the Keynesian and the neoclassical. Until the Keynesian revolution in mainstream economics in the wake of the Great Depression, classical and neoclassical explanations were the mainstream explanation of economic cycles; following the Keynesian revolution, neoclassical macroeconomics was largely rejected. There has been some resurgence of neoclassical approaches in the form of real business cycle (RBC) theory. Real business cycle theory is a class of macroeconomic model in which business cycle fluctuations to a large extent can be accounted for by real (in contrast to nominal) shocks. In a broad sense , there have been two ways by which economic and business cycles have been studied, one analyzing complete cycles and the other, studying the behavior of the economic indicators during incomplete phases by comparing current contractions or expansions whith corresponding phases in the past in order to assess current economic conditions. Two different methodologies have been applied for current economic analysis, the parametric one, that makes use of filters based on models, such as ARIMA and State Space models , and the other based on nonparametric digital filtering. Some of the invited papers of this issue deal with this second approach.


1980 ◽  
Vol 23 (1-2) ◽  
pp. 153-204 ◽  
Author(s):  
Frank Leeming

AbstractThis article is arranged in seven sections. In the first section, attention is drawn to the remarkable and extremely extensive rectilinear land layouts which can be deduced from large-scale topographical maps of northern China, to the likelihood of their having been constructed in periods of official land allocation schemes, and to various problems of procedure which arise in the attempt to study them systematically. The second section surveys the chün-t'ien land management systems, as they are known from the traditional historic sources, and a number of special features of these systems, especially the relations between changes in land allocations and changes in the official units in which they were measured. It is argued that the rectilinear forms indicated by the maps could not easily have been set up in chün-t'ien times, because the land was then already closely settled, and that the prominent strip systems which can be found on most of the maps, not always clearly an outcome of the chun-t'ien systems, suggest an earlier origin for these basic rectilinear forms. This reasoning, and even more the study of the dimensions used in the strip systems, leads back to the tradition of ching-t'ien. In the third section, examples are given of military farm layouts, which are a special and local feature of some of the maps. In the fourth section, two examples of contrasting rectilinear layouts are described and analysed as types-one from Anhwei, the other from Shensi. Both appear to be T'ang reconstructions of much older formal layouts, and both are thought to lead back to ching-t'ien through detectable steps in Ch'in or Han time. The fifth section gives three examples of layouts from Shantung, all apparently rebuilt under Northern Ch'i, but all based upon ching-t'ien foundations. The sixth section illustrates and analyses a layout from Honan, apparently reconstructed in Sui times but also apparently built upon ching-t'ien foundations. In the seventh and last section, the salient features of the argument and the interpretations are summarised.


2017 ◽  
Vol 25 (3) ◽  
pp. 325-335 ◽  
Author(s):  
Elin Bjarnegård ◽  
Pär Zetterberg

Political parties sometimes set up formal criteria to define the pool of potential candidates. This article represents the first large-scale comparative analysis of potential unintended gendered consequences of these formal selection criteria for parliamentary representation. Using unique data on 101 political parties in 32 African, Asian, and postcommunist European countries, we find that there is indeed a relationship between formal selection criteria and men’s and women’s political representation. Criteria that concern ethnic or geographic background and intraparty experiences are harmful to women. On the other hand, gendered consequences are not as pronounced as a result of criteria concerning qualifications or requirements in relation to electability. Taken together, the analysis points to the need to pay increased attention to formal selection criteria and how this under-researched aspect of candidate selection shapes the parliamentary representation of underrepresented groups.


1990 ◽  
Vol 5 (3) ◽  
pp. 247-249 ◽  
Author(s):  
Remi Russbach

Sound disaster preparedness and a well-organized, local and material response will considerably reduce the necessity for calling on international assistance in the event of disaster. However, despite an excellent level of preparedness, some dramatic situations in the wake of a large-scale disaster always will make the mobilization of international resources absolutely essential.The international network for disaster relief is quite complex. Many governments have set up emergency relief teams to cope with disasters in their own countries and are able to assign these teams to international relief operations. This type of governmental assistance is provided under agreement with the other governments involved. The United Nations (UN), through the Office of the UN Disaster Relief Coordinator (UNDRO), can play a role in coordinating emergency operations.


1996 ◽  
Vol 76 (06) ◽  
pp. 0939-0943 ◽  
Author(s):  
B Boneu ◽  
G Destelle ◽  

SummaryThe anti-aggregating activity of five rising doses of clopidogrel has been compared to that of ticlopidine in atherosclerotic patients. The aim of this study was to determine the dose of clopidogrel which should be tested in a large scale clinical trial of secondary prevention of ischemic events in patients suffering from vascular manifestations of atherosclerosis [CAPRIE (Clopidogrel vs Aspirin in Patients at Risk of Ischemic Events) trial]. A multicenter study involving 9 haematological laboratories and 29 clinical centers was set up. One hundred and fifty ambulatory patients were randomized into one of the seven following groups: clopidogrel at doses of 10, 25, 50,75 or 100 mg OD, ticlopidine 250 mg BID or placebo. ADP and collagen-induced platelet aggregation tests were performed before starting treatment and after 7 and 28 days. Bleeding time was performed on days 0 and 28. Patients were seen on days 0, 7 and 28 to check the clinical and biological tolerability of the treatment. Clopidogrel exerted a dose-related inhibition of ADP-induced platelet aggregation and bleeding time prolongation. In the presence of ADP (5 \lM) this inhibition ranged between 29% and 44% in comparison to pretreatment values. The bleeding times were prolonged by 1.5 to 1.7 times. These effects were non significantly different from those produced by ticlopidine. The clinical tolerability was good or fair in 97.5% of the patients. No haematological adverse events were recorded. These results allowed the selection of 75 mg once a day to evaluate and compare the antithrombotic activity of clopidogrel to that of aspirin in the CAPRIE trial.


2017 ◽  
Vol 4 (1) ◽  
pp. 41-61
Author(s):  
Pelin Sönmez ◽  
Abulfaz Süleymanov

Türkiye, Cumhuriyet tarihinin en yoğun zorunlu göç dalgasını 2011 yılından bu yana süren Suriye Savaşı ile yaşamaktadır. Suriye vatandaşlarının geçici koruma statüsü altında Türkiye toplumuna her açıdan entegrasyonları günümüzün ve geleceğin politika öncelikleri arasında düşünülmelidir. Öte yandan ülkeye kabul edilen sığınmacıların kendi kültürel kimliğini kaybetmeden içinde yaşadığı ev sahibi topluma uyumu, ortak yaşam kültürünün gelişmesi açısından önem arz etmektedir. Bu makalede, "misafir" olarak kabul edilen Suriyeli vatandaşların Türk toplumunca kabul edilmeleri ve dışlanma risklerinin azaltılmasına yönelik devlet politikaları ortaya konularak, üye ve aday ülkelere göçmenlerin dışlanmasını önlemek için Avrupa Birliği (AB) tarafından sunulan hukuki yapı ve kamu hizmeti inisiyatifleri incelenmekte, birlikte yaşam kültürü çerçevesinde Suriyeli vatandaşlara yönelik  toplumsal kabul düzeyleri ele alınmaktadır. Çalışma iki ana bölümden oluşmaktadır: göçmen ve sığınmacılara karşı toplumsal dışlanmayı engellemek için benimsenen yasa ve uygulamaların etkisi ve İstanbul-Sultanbeyli bölgesinde Suriyeli sığınmacılarla ilgili toplumsal algı çalışmasının sonuçları. Bölgede ikamet eden Suriyelilere yönelik toplumsal kabul düzeyinin yüksek olduğu görülürken, halkın Suriyelileri kendilerine  kültürel ve dini olarak yakın hissetmesi toplumsal kabul düzeyini olumlu etkilemektedir. ABSTRACT IN ENGLISHAn evaluation of the European Union and Turkish policies regarding the culture of living togetherThis article aims to determine the level of social acceptance towards Syrians within the context of cohabitation culture by evaluating EU’s legal structure and public service initiatives in order to prevent Syrian refugees from being excluded in member and candidate countries and by revealing government policies on acceptance of Syrians as “guest” by Turkish society and minimizing the exclusion risks of them. This article consists of two main parts, one of which is based on the effects of law and practices preventing refugees and asylum seekers from social exclusion, and the other is on the results of social perception on Syrians in Sultanbeyli district of Istanbul. At the end of 5-years taking in Syrian War, it is obvious that most of more than 3 million Syrian with unregistered ones in Turkey are “here to stay”. From this point of view, the primary scope of policies should be specified in order to remove side effects of refugee phenomenon seen as weighty matter by bottoming out the exclusion towards those people. To avoid possible large-scale conflicts or civil wars in the future, the struggle with exclusion phenomenon plays a crucial role regarding Turkey’s sociological situation and developing policies. In the meaning of forming a model for Turkey, a subtitle in this article is about public services for European-wide legal acquis and practices carried out since 1970s in order to prevent any exclusion from the society. On the other hand, other subtitles are about legal infrastructure and practices like Common European Asylum and Immigration Policies presented in 2005, and Law on Foreigners and International Protection introduced in 2013. In the last part of the article, the results of a field survey carried out in a district of Istanbul were used to analyze the exclusion towards refugees in Turkey. A face-to-face survey was randomly conducted with 200 settled refugees in Sultanbeyli district of Istanbul, and their perceptions towards Syrian people under temporary protection were evaluated. According to the results, the level of acceptance for Syrians living in this district seems relatively high. The fact that Turkish people living in the same district feel close to Syrian refugees culturally and religiously affect their perception in a positive way: however, it is strikingly seen and understood that local residents cop an attitude on the refugees’ becoming Turkish citizens.


2020 ◽  
Vol 6 (5) ◽  
pp. 1183-1189
Author(s):  
Dr. Tridibesh Tripathy ◽  
Dr. Umakant Prusty ◽  
Dr. Chintamani Nayak ◽  
Dr. Rakesh Dwivedi ◽  
Dr. Mohini Gautam

The current article of Uttar Pradesh (UP) is about the ASHAs who are the daughters-in-law of a family that resides in the same community that they serve as the grassroots health worker since 2005 when the NRHM was introduced in the Empowered Action Group (EAG) states. UP is one such Empowered Action Group (EAG) state. The current study explores the actual responses of Recently Delivered Women (RDW) on their visits during the first month of their recent delivery. From the catchment area of each of the 250 ASHAs, two RDWs were selected who had a child in the age group of 3 to 6 months during the survey. The response profiles of the RDWs on the post- delivery first month visits are dwelled upon to evolve a picture representing the entire state of UP. The relevance of the study assumes significance as detailed data on the modalities of postnatal visits are available but not exclusively for the first month period of their recent delivery. The details of the post-delivery first month period related visits are not available even in large scale surveys like National Family Health Survey 4 done in 2015-16. The current study gives an insight in to these visits with a five-point approach i.e. type of personnel doing the visit, frequency of the visits, visits done in a particular week from among those four weeks separately for the three visits separately. The current study is basically regarding the summary of this Penta approach for the post- delivery one-month period.     The first month period after each delivery deals with 70% of the time of the postnatal period & the entire neonatal period. Therefore, it does impact the Maternal Mortality Rate & Ratio (MMR) & the Neonatal Mortality Rates (NMR) in India and especially in UP through the unsafe Maternal & Neonatal practices in the first month period after delivery. The current MM Rate of UP is 20.1 & MM Ratio is 216 whereas the MM ratio is 122 in India (SRS, 2019). The Sample Registration System (SRS) report also mentions that the Life Time Risk (LTR) of a woman in pregnancy is 0.7% which is the highest in the nation (SRS, 2019). This means it is very risky to give birth in UP in comparison to other regions in the country (SRS, 2019). This risk is at the peak in the first month period after each delivery. Similarly, the current NMR in India is 23 per 1000 livebirths (UNIGME,2018). As NMR data is not available separately for states, the national level data also hold good for the states and that’s how for the state of UP as well. These mortalities are the impact indicators and such indicators can be reduced through long drawn processes that includes effective and timely visits to RDWs especially in the first month period after delivery. This would help in making their post-natal & neonatal stage safe. This is the area of post-delivery first month visit profile detailing that the current article helps in popping out in relation to the recent delivery of the respondents.   A total of four districts of Uttar Pradesh were selected purposively for the study and the data collection was conducted in the villages of the respective districts with the help of a pre-tested structured interview schedule with both close-ended and open-ended questions.  The current article deals with five close ended questions with options, two for the type of personnel & frequency while the other three are for each of the three visits in the first month after the recent delivery of respondents. In addition, in-depth interviews were also conducted amongst the RDWs and a total 500 respondents had participated in the study.   Among the districts related to this article, the results showed that ASHA was the type of personnel who did the majority of visits in all the four districts. On the other hand, 25-40% of RDWs in all the 4 districts replied that they did not receive any visit within the first month of their recent delivery. Regarding frequency, most of the RDWs in all the 4 districts received 1-2 times visits by ASHAs.   Regarding the first visit, it was found that the ASHAs of Barabanki and Gonda visited less percentage of RDWs in the first week after delivery. Similarly, the second visit revealed that about 1.2% RDWs in Banda district could not recall about the visit. Further on the second visit, the RDWs responded that most of them in 3 districts except Gonda district did receive the second postnatal visit in 7-15 days after their recent delivery. Less than half of RDWs in Barabanki district & just more than half of RDWs in Gonda district received the third visit in 15-21 days period after delivery. For the same period, the majority of RDWs in the rest two districts responded that they had been entertained through a home visit.


2019 ◽  
Vol 15 (1) ◽  
pp. 54-56
Author(s):  
Stelina Alkagiet ◽  
Konstantinos Tziomalos

Primary aldosteronism (PA) is not only a leading cause of secondary and resistant hypertension, but is also quite frequent in unselected hypertensive patients. Moreover, PA is associated with increased cardiovascular risk, which is disproportionate to BP levels. In addition, timely diagnosis of PA and prompt initiation of treatment attenuate this increased risk. On the other hand, there are limited data regarding the usefulness of screening for PA in all asymptomatic or normokalemic hypertensive patients. More importantly, until now, no well-organized, large-scale, prospective, randomized controlled trial has proved the effectiveness of screening for PA for improving clinical outcome. Accordingly, until more relevant data are available, screening for PA should be considered in hypertensive patients with spontaneous or diuretic-induced hypokalemia as well as in those with resistant hypertension. However, screening for PA in all hypertensive patients cannot be currently recommended.


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