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The purpose of this paper is to examine the multiplier effects of economic activities in the local economy of Greek non-metropolitan prefectures at NUTS3 level according to the Eurostat classification.

A disaggregate economic base model using OLS regression with clustered standard errors is implemented in 49 non-metropolitan prefectures and 17 economic activities for 2000 and 2012. The specific model indicates a clear picture of multiplier effects of economic activities among the prefectures as it has a similar logic to the input-output analysis while bearing in mind the spatial effects among prefectures. The specific model has not applied for testing base multipliers in the Greek economy according to the academic literature.

Non-traditional export-oriented activities play a significant role in the economic growth of the non-metropolitan prefectures. Their multiplier effects are higher than the traditional basic activities. Especially, some of these activities indicate strong shifts on specific local activities, which tend to be the significant multiplier effects on the overall local economy. Of course, the existence of agglomeration economies plays a considerable role in non-metropolitan prefectures with a significant population and non-metropolitan prefectures which are in insular space or belong to the perimetric and interior mountainous space, which are sparsely populated.

The specific model applies at the NUTS3 level, according to the Eurostat classification. Also, the model indicates that the multiplier effects come from non-traditional export activities, such as, information-communication, arts entertainment, health services, professional support services and real estate in the overall local economy. Finally, the spatial correlation influences the sectoral multipliers.

With high public debts and suffering economies after the COVID-19 pandemic, governments will look for ways to promote recovery. Literature substantially reports on the favorable macroeconomic impact of the healthcare sector.

The authors use data on 19 European countries. Over 30 variables are analyzed to find factors that foster or suppress the economic impact of the healthcare sector. The economic impact is thereby expressed through five types of total multipliers, acting as dependent variables. The authors estimate multiple econometric models.

The results indicate factors that intensify or reduce the economic impact of the healthcare sector as they cause the value of one or more economic multipliers to augment or to diminish. Positive effects are expected from the growth of public funds' share in total healthcare expenditure leading to a higher output, income and value-added multipliers. The import multiplier diminishes when expenditure on healthcare as percent of GDP rises. On the other hand, rising expenditure on pharmaceuticals in the share of healthcare expenditure lowers the output multiplier. Rising GDP per capita and higher healthcare systems' technical efficiency cause the employment multiplier to lower.

Policymakers can strengthen the economic impact of the healthcare sector on the national economy. This could be achieved by stimulating factors, being identified in our study. Strengthening the economic impact of the healthcare sector is especially welcomed when fostering economic recovery is needed.

Income multipliers are commonly used in the valuation of income streams. All income dollars, however, are not alike, and investors make distinctions based on the nature and source of the income. The income multiplier is adjusted for the characteristics of the investment. The present study deals with major apartment buildings and concerns the estimation of income multipliers from market observations. Regression analysis is used to estimate the gross and net income multipliers, as well as adjustments for differences in property features, zoning aspects, and economic conditions. The multipliers are then used in the valuation of two subject properties. An important issue is reconciling the estimates when the two multipliers lead to somewhat different values. The sample consists of high‐rise buildings in the West End area of downtown Vancouver, Canada, but the approach is general and widely applicable.

The purpose of this paper is to examine the multiplier effects of the grain subsidy program in China, which is a large food self-sufficiency project that is implemented as a cash transfer program. Income multiplier effects have not been empirically examined in the evaluation of the grain subsidy program although increasing the income of farmers is the original goal of this project.

A large number of household-level observations are employed to measure the program’s income multiplier. An unrestricted model was first employed to measure the multipliers in a period of two years, and the difference was evaluated. Then, the income promotion effects of grain subsidy on various income sources for each specific subset of the population, such as liquidity conditions and household characteristics, were estimated.

The results show that the grain subsidy program has a high income multiplier, and the income promotion effect of the transferred subsidies is from agricultural production derived by intensifying input for each unit of land. The multiplier effect of the grain subsidy program as a cash transfer program can be interpreted as the shadow value of relaxing liquidity constraints and could be particularly utilized by households with more farming land and farmers in less developed regions in China. Hence, to maximize the income multiplier effect, the grain subsidy distribution method should consider these criteria instead of retaining the prevalent standard that is based on contracted land areas.

This study addresses the gap that the effect of China’s grain subsidy program on income increment has not been empirically examined in nation wide.

The sustainability of decentralized seed producers established to enhance farmers’ access to seed of newly introduced biofortified crops is a major challenge. Understanding what motivates the multipliers of clonally propagated crops to engage in seed multiplication is critical for enhancing access to improved seed varieties. The purpose of this paper is to examine the structure and content of mental models associated with the decision to engage in biofortified sweetpotato vine multiplication as a business.

The study focused on decentralized vine multipliers from Kenya and Ethiopia. These were stratified by orientation toward nutrition or commercial value addition. A total of 45 multipliers were interviewed. Means-end chain (MEC) analysis combined with laddering technique was used to generate mental constructs multipliers relate with the decision to engage in biofortified sweetpotato vine multiplication.

The structure and content of mental models of biofortified sweetpotato vine multipliers supporting nutrition-focused interventions and those supporting commercial value-addition sweetpotato interventions are different. Nutrition-focused multipliers are driven by the benefits of good health, while commercial value-addition interventions are driven by the benefit of making “more money.” The content and structure of mental models are also country/region specific.

This study has demonstrated that decision to engage in community seed production business is driven not only by the desire to make profits but, equally importantly, by personal and societal (social) factors. It has also discussed the limitations of current analysis and future research areas.

This study is the first to apply MES analysis to assess how decision to invest in seed multiplication business is affected farmers’ personal values and other psychosocial factors.

This paper aims to improve the performance of approximate multiplier in terms of peak signal to noise ratio (PSNR) and quality of the image.

The paper proposes an approximate circuit for 4:2 compressor, which shows a significant amount of improvement in performance metrics than that of the existing designs. This paper also reports a hybrid architecture for the Dadda multiplier, which incorporates proposed 4:2 compressor circuit as a basic building block.

Hybrid Dadda multiplier architecture is used in a median filter for image de-noising application and achieved 20% more PSNR than that of the best available designs.

The proposed 4:2 compressor improves the error metrics of a Hybrid Dadda multiplier.

Considerable interest has been shown in recent years in the calculation of regional income and/or employment multipliers. Their role in the formulation and evaluation of regional policy has been stressed by Wilson (1968) and some writers have been prepared to suggest that high levels of leakage and consequent low multipliers are causes of economic decline or slow growth in the peripheral regions just as much as are economic structure or locational disadvantages (Thirlwell, 1972). The early approaches to the calculation of income or employment multipliers generally used aggregate data on employment, where data on output were not available, national input—output tables to identify input mixes and generalised economic base concepts to distinguish local and nonlocal purchases and sales (Archibald, 1967; Brown et al, 1967; Steele, 1969). More recent work, however, had identified another approach, forsaking the use of aggregated national data sets and employing intensive survey methods of individual industrial plants, such as Greig's study of the pulp and paper mills at Fort William (1971), of educational establishments such as universities (Brownrigg, 1973; Lewes and Kirkness, 1973) or of service sectors such as tourism (Blake and MacDowell, 1967). More recently Lever (1974a) has introduced a more rigorous comparative method into the study of individual manufacturing establishments.

The authors estimate the multiplier effect of government public infrastructure investment in Spain. This paper aims to use annual data of the 17 Spanish autonomous communities for the 1980–2016 period.

The authors use dynamic acyclic graphs and the heterogeneous panel structural vector autoregressive (P-SVAR) method of Pedroni (2013). This method is robust to cross-sectional heterogeneity and dependence, which are present in the data.

The findings suggest that an increase in the level of government public infrastructure investment generates a positive and persistent effect on the level of output. Five years after the fiscal expansion, the multiplier effects of government public infrastructure investment reach values above one. This confirms that government public infrastructure investment expansions have Keynesian effects. The authors also find that the multiplier effects differ between autonomous communities with above-average and below-average GDP per capita.

To the best of the authors’ knowledge, no research uses dynamic acyclic graphs and heterogeneous P-SVAR techniques to estimate fiscal multipliers of government public investment in Spain by using subnational data.

When simulating fluid-structure interaction (FSI), it is often essential that the no-slip condition is accurately enforced at the wetted boundary of the structure. This paper aims to evaluate the relative strengths and limitations of the penalty and Lagrange multiplier methods, within the context of modelling FSI, through a comparative analysis.

In the immersed boundary method, the no-slip condition is typically imposed by augmenting the governing equations of the fluid with an artificial body force. The relative accuracy and computational time of the penalty and Lagrange multiplier formulations of this body force are evaluated by using each to solve three test problems, namely, flow through a channel, the harmonic motion of a cylinder through a stationary fluid and the vortex-induced vibration (VIV) of a cylinder.

The Lagrange multiplier formulation provided an accurate solution, especially when enforcing the no-slip condition, and was robust as it did not require “tuning” of problem specific parameters. However, these benefits came at a higher computational cost relative to the penalty formulation. The penalty formulation achieved similar levels of accuracy to the Lagrange multiplier formulation, but only if the appropriate penalty factor was selected, which was difficult to determine a priori.

Both the Lagrange multiplier and penalty formulations of the immersed boundary method are prominent in the literature. A systematic quantitative comparison of these two methods is presented within the same computational environment. A novel application of the Lagrange multiplier method to the modelling of VIV is also provided.