Tag: productivity

EFFECTS OF CLIMATIC FACTORS ON THE PRODUCTIVITY OF SMALLHOLDER RUBBER PLANTATIONS IN SOUTH SUMATRA, INDONESIA

Imade Yoga PRASADA

Junior Lecturer in Study Program of Agribusiness, Faculty of Science and Technology, Universitas Putra Bangsa, Jl Ronggowarsito No. 18 Kebumen 54361, Indonesia

imade.yogap@gmail.com

Aura DHAMIRA

Department of Agricultural Socioeconomics, Faculty of Agriculture, Universitas Gadjah Mada, Jl Flora Bulaksumur, Yogyakarta 55281, Indonesia

aura.dhamira@mail.ugm.ac.id

Agus Dwi NUGROHO

Junior Lecturer in Faculty of Agriculture, Universitas Gadjah Mada, Jl Flora Bulaksumur, Yogyakarta 55281, Indonesia ,PhD Student in Doctoral School of Economic and Regional Sciences, Hungarian University of Agriculture and Life Sciences, Godollo, Hungary

agus.dwi.n@mail.ugm.ac.id

Abstract

South Sumatra Province is known as Indonesia’s largest natural rubber-producing center. In the last few decades, South Sumatra has faced climate change issues marked by increased variability of maximum temperature, mean temperature, minimum temperature, and rainfall. On the other hand, smallholder rubber plantations are considered to be particularly vulnerable to climate change. Therefore, the goal of this study was to identify the climatic factors that affect the productivity of smallholder rubber plantations in South Sumatra. The data was gathered from the Indonesian Central Bureau of Statistics and the Indonesian Agency for Meteorology, Climatology, and Geophysics from January 2006 to December 2019. A quadratic regression model was used to analyze the data. The results showed that maximum temperature, mean temperature, minimum temperature, and rainfall affect the productivity of smallholder rubber plantations. Maximum temperature and rainfall indicate a pattern that is increasing to the optimum point of 32.29 °C and 281.40 mm respectively and after that, it will slow down. The mean temperature and minimum temperature show a pattern that is decreasing to the optimum point of 26.84 °C and 22.14 °C respectively and after that, it will slow down.

Keywords: productivity, smallholder rubber plantations, temperature, rainfall

JEL classification: Q15, Q54, Q57

 pp. 109-121

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MEASURING THE EFFICIENCY AND PRODUCTIVITY CHANGE OF MUNICIPALITIES:EMPIRICAL EVIDENCE FROM GREEK MUNICIPALITIES OVER THE TIME PERIOD 2013-2016

Ifigeneia-Dimitra POUGKAKIOTI

Ph.D. cand. University of Thessaly, Lamia, Greece

pougakioti.ifigenia@gmail.com

Constantinos TSAMADIAS

Emeritus Professor, School of Environment, Geography and Applied Economics Harokopio University, Athens, Greece

ctsamad@hua.gr

Abstract

This paper investigates the relative efficiency and productivity change of municipalities of Greece (regions of Thessaly and Central Greece), during the period 2013–2016. It implements Data Envelopment Analysis (D.E.A.) and Malmquist analysis. Additionally it estimates the effects of the environmental factors on the efficiency using Regression Analysis. The empirical analysis reveals that efficiency and productivity values have gradually improved after the latest reform of Local Government and under restrictive fiscal policy. Τhe average efficiency under constant or variable returns to scale is 0.772 and 0.878 respectively and the mean scale efficiency is 0.883. The total factor productivity has risen by an annual average of 3.3% relatively to the base year 2013. Environmental variables such as type of municipality and population density had a statistically significant positive effect on efficiency. The results of the empirical analysis are consistent to the findings from studies that concern European and other countries. The findings provide benchmarks for policy evaluation and suggestions for region-based approaches.

Keywords: Greek municipalities, efficiency, productivity, DEA, Malmquist analysis

JEL classification: C14, J48, P41, P43

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PRODUCTIVE EFFICIENCY OF PORTUGUESE VINEYARD REGIONS

Ana MARTA-COSTA

Corresponding author. Assistant Professor. University of Trás-os-Montes e Alto Douro (UTAD) and Centre for Transdisciplinary Development Studies (CETRAD), Portugal, www.utad.pt

amarta@utad.pt

Vítor MARTINHO

Coordinator Professor. Agricultura School, Polytechnic Institute of Viseu, Portugal

vdmartinho@esav.ipv.pt.

Micael SANTOS

Research fellow. University of Trás-os-Montes e Alto Douro (UTAD) and Centre for Transdisciplinary Development Studies (CETRAD)

micaels@utad.pt

Abstract

The overall globalization in wine industry and the search for sustainability of the sector has increased competition which highlights the importance of productivity gains. The purpose of this paper is to analyse the productive efficiency of the viticulture sector for the Portuguese regions, over the period 1989 to 2007, with data from the EUFADN, using both a deterministic and stochastic approach. The results show an increase of Technical Efficiency (TE) when used the stochastic frontiers analysis (SFA) in all regions, while the data envelopment analysis (DEA) approach through the Malmquist index reveals a stabilization of TE.

Keywords: Efficiency, productivity, Portuguese regions, viticulture.

JEL classification: C6, Q1

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