Fifteen Most Common Trends Shaping Construction Wastage Worldwide and The Global Implications of These Trends in Nigeria

2021 ◽  
Author(s):  
YAKUBU Olanrewaju HASSAN
Keyword(s):  
Common Trends

Temporal Common Trends of Topsoil Water Dynamics in a Humid Subtropical Forest Watershed

2009 ◽  
Vol 8 (2) ◽  
pp. 437-449 ◽  
Author(s):  
A. Ritter ◽  
C. M. Regalado ◽  
R. Muñoz-Carpena
Keyword(s):  
Subtropical Forest ◽  
Water Dynamics ◽  
Common Trends ◽  
Forest Watershed

Multivariate Markov-switching score-driven models: an application to the global crude oil market

2021 ◽  
Vol 0 (0) ◽  
Author(s):  
Szabolcs Blazsek ◽  
Alvaro Escribano ◽  
Adrian Licht
Keyword(s):  
Crude Oil ◽  
Moving Average ◽  
Local Level ◽  
Markov Switching ◽  
Impulse Response Functions ◽  
Common Trends ◽  
Vector Autoregressive ◽  
Oil Market ◽  
Long Run ◽  
Special Cases

Abstract A new class of multivariate nonlinear quasi-vector autoregressive (QVAR) models is introduced. It is a Markov switching score-driven model with stochastic seasonality for the multivariate t-distribution (MS-Seasonal-t-QVAR). As an extension, we allow for the possibility of having common-trends and nonlinear co-integration. Score-driven nonlinear updates of local level and seasonality are used, which are robust to outliers within each regime. We show that VAR integrated moving average (VARIMA) type filters are special cases of QVAR filters. Using exclusion, sign, and elasticity identification restrictions in MS-Seasonal-t-QVAR with common-trends, we provide short-run and long-run impulse response functions for the global crude oil market.

scholarly journals The variability of urban safety performance functions for different road elements: an Italian case study

2021 ◽  
Vol 13 (1) ◽  
Author(s):  
Paolo Intini ◽  
Nicola Berloco ◽  
Gabriele Cavalluzzi ◽  
Dominique Lord ◽  
Vittorio Ranieri ◽  
...  
Keyword(s):  
Negative Binomial ◽  
Prediction Models ◽  
Safety Performance ◽  
Common Trends ◽  
Main Research ◽  
Pavement Markings ◽  
Italian Case ◽  
Sight Distance ◽  
Safety Performance Functions ◽  
Urban Safety

Abstract Background Urban safety performance functions are used to predict crash frequencies, mostly based on Negative Binomial (NB) count models. They could be differentiated for considering homogeneous subsets of segments/intersections and different predictors. Materials and methods The main research questions concerned: a) finding the best possible subsets for segments and intersections for safety modelling, by discussing the related problems and inquiring into the variability of predictors within the subsets; b) comparing the modelling results with the existing literature to highlight common trends and/or main differences; c) assessing the importance of additional crash predictors, besides traditional variables. In the context of a National research project, traffic volumes, geometric, control and additional variables were collected for road segments and intersections in the City of Bari, Italy, with 1500 fatal+injury related crashes (2012–2016). Six NB models were developed for: one/two-way homogeneous segments, three/four-legged, signalized/unsignalized intersections. Results Crash predictors greatly vary within the different subsets considered. The effect of vertical signs on minor roads/driveways, critical sight distance, cycle crossings, pavement/markings maintenance was specifically discussed. Some common trends but also differences in both types and effect of crash predictors were found by comparing results with literature. Conclusion The disaggregation of urban crash prediction models by considering different subsets of segments and intersections helps in revealing the specific influence of some predictors. Local characteristics may influence the relationships between well-established crash predictors and crash frequencies. A significant part of the urban crash frequency variability remains unexplained, thus encouraging research on this topic.

scholarly journals Academic policy advice in consensus-seeking countries: the cases of Belgium and Germany

2019 ◽  
pp. 002085231987878 ◽  
Author(s):  
Valérie Pattyn ◽  
Sonja Blum ◽  
Ellen Fobé ◽  
Mirjam Pekar-Milicevic ◽  
Marleen Brans
Keyword(s):  
Academic Research ◽  
Policy Advice ◽  
Current Evidence ◽  
Common Trends ◽  
Policy Advisory Systems ◽  
Academic Policy ◽  
Advisory Systems ◽  
The Government ◽  
Special Case

Research on policy-advisory systems worldwide has shown that historically dominant sources of advice traditionally located in-house to the government have been increasingly supplemented by other actors and outside knowledge. However, the vast majority of research has concentrated on the anglophone context. Yet, countries with a consensus-seeking, neo-corporatist tradition provide a special case in terms of policy advice and merit more scholarly attention. What counts as evidence in these countries is the expert rationality of institutional representatives. The position and role of academic research in consensus-based systems is unclear, and is the focus of this article. Can we observe commonalities across consensus-style countries, or do differences prevail? We investigate two typical consensus-seeking countries: Belgium and Germany. To examine the supply side of policy advice, the article reviews current evidence regarding their policy-advisory systems. For the demand side, we present insights from a survey among federal ministerial officials. We find common trends between the two cases but their nature and extent are idiosyncratic. In Belgium, the supply of and demand for academic policy advice is comparatively lower, while the German case exhibits more change in the advisory landscape and institutionalisation of the supply of and demand for academic research. Points for practitioners   • Countries with a consensus-seeking, neo-corporatist tradition provide a special case in terms of policy advice.   • The findings suggest that there are common trends but their nature and extent are idiosyncratic.   • In Belgium, the supply of and demand for academic advice is comparatively lower.   • Germany’s policy-advisory landscape exhibits more change and institutionalisation of the supply of and demand for academic research.

The dialectic between global and local perspectives in archaeological theory, heritage and publications

2008 ◽  
Vol 15 (1) ◽  
pp. 56-69 ◽  
Author(s):  
Kristian Kristiansen
Keyword(s):  
Annual Meeting ◽  
The Other ◽  
Archaeological Theory ◽  
Common Trends ◽  
Archaeological Practice ◽  
The Past ◽  
Other Hand ◽  
Legislative Framework ◽  
Global And Local ◽  
Local Perspectives

When I agreed to present the article as a vehicle for discussion at a session at the EAA's annual meeting in Zadar, Croatia, I decided to approach the question of a European archaeology from what I considered to be the three organizing pillars of archaeological practice: heritage, theory and publications. Heritage is the dominant organizational/legislative framework for archaeological practice, and it is where most of the money is spent. Theory, on the other hand, organizes most of our interpretations of the past, while publications are still the most common way of presenting the results of both heritage work (mostly excavations) and interpretations of that work. In this way I hoped to have encircled the dominant parameters for a diagnosis of the archaeological landscapes in Europe. I assumed that there might be some correlation between the three, and that such observed common trends within two or more variables would strengthen the argument, to paraphrase processual jargon.

Unus Pro Omnibus, Omnes Pro Uno

2021 ◽  
pp. 1-30
Author(s):  
Tommaso Natoli
Keyword(s):  
Comparative Analysis ◽  
Disaster Management ◽  
Regional Models ◽  
Catastrophic Event ◽  
Regional Organizations ◽  
Common Trends ◽  
Regional Institutions ◽  
Legal Frameworks

Abstract Neighbouring States form regional institutions for purposes that they cannot meet singularly, as in case of exceptional events that overwhelm national capacities. Comparing regional organizations endowed with specific Disaster Management (dm) functions provides a suitable analytical lens of this phenomenon, being a means for exploring how fundamental principles like sovereignty or solidarity are differently combined within their legal frameworks. Building on a comparative analysis of two regional models (eu and asean-aha), the article suggests that the positioning of regional organizations on the sovereignty-solidarity axis is facilitated by an adapted use of the well-known Latin maxim ‘unus pro omnibus, omnes pro uno’. This indicates both dynamics in which the organization is endowed with autonomous capacities of acting in support of members stricken by a catastrophic event, and those regional mechanisms whose functioning depends on the case-by-case involvement of their membership. As will be maintained, whereas these interrelated dynamics coexist in the two organizations analysed, they are differently modelled according to the respective regulatory settings. Yet, common trends in the development of respective institutional functioning can be detected.

Sign in / Sign up

Export Citation Format

Share Document