National Bureau of Statistics of Nigeria

About: National Bureau of Statistics of Nigeria is a based out in . It is known for research contribution in the topics: Population & China. The organization has 101 authors who have published 109 publications receiving 4098 citations.

Mapping global cropland and field size

Abstract: A new 1 km global IIASA-IFPRI cropland percentage map for the baseline year 2005 has been developed which integrates a number of individual cropland maps at global to regional to national scales. The individual map products include existing global land cover maps such as GlobCover 2005 and MODIS v.5, regional maps such as AFRICOVER and national maps from mapping agencies and other organizations. The different products are ranked at the national level using crowdsourced data from Geo-Wiki to create a map that reflects the likelihood of cropland. Calibration with national and subnational crop statistics was then undertaken to distribute the cropland within each country and subnational unit. The new IIASA-IFPRI cropland product has been validated using very high-resolution satellite imagery via Geo-Wiki and has an overall accuracy of 82.4%. It has also been compared with the EarthStat cropland product and shows a lower root mean square error on an independent data set collected from Geo-Wiki. The first ever global field size map was produced at the same resolution as the IIASA-IFPRI cropland map based on interpolation of field size data collected via a Geo-Wiki crowdsourcing campaign. A validation exercise of the global field size map revealed satisfactory agreement with control data, particularly given the relatively modest size of the field size data set used to create the map. Both are critical inputs to global agricultural monitoring in the frame of GEOGLAM and will serve the global land modelling and integrated assessment community, in particular for improving land use models that require baseline cropland information. These products are freely available for downloading from the http://cropland.geo-wiki.org website.

R&D Performance in Chinese industry

Abstract: This research, which investigates a set of fundamental relationships in the R&D literature, is based on an unusually rich set of panel data covering the population of China’s large and medium-size manufacturing enterprises. Using a recursive three-equation system, we investigate the determinants of firm-level R&D intensity, the process of knowledge production, and the impact of innovation on firm performance. Several results stand out. Overall, the statistical relationships within the model are surprisingly robust, including the contributions of R&D expenditure to new product (NP) innovation, productivity, and profitability. The roles of firm size, market concentration, and profitability in driving R&D effort parallel to those found in the US literature. We find that new product (NP) innovation accounts for approximately 12% of the total returns to R&D. Also, returns to industrial R&D in China appear to be at least three to four times the returns to fixed production assets.

R&D and Technology Transfer: Firm-Level Evidence from Chinese Industry

Abstract: In bridging the technology gap with the OECD nations, developing economies have access to three avenues of technological advance: domestic R&D, technology transfer, and foreign direct investment. This paper examines the contributions of each of these avenues, as well as their interactions, to productivity within Chinese industry. Based on a large data set for China's large and medium-size enterprises, the estimation results show that in-house R&D significantly complements technology transfer—whether of domestic or foreign origin. Foreign direct investment, which we assume is an important channel of proprietary technology transfer, does not facilitate the transfer of market-mediated foreign technology.

Exporting and Firm Performance: Chinese Exporters and the Asian Financial Crisis

Abstract: We ask how export demand shocks associated with the Asian financial crisis affected Chinese exporters. We construct firm-specific exchange rate shocks based on the precrisis destinations of firms' exports. Because the shocks were unanticipated and large, they are a plausible instrument for identifying the impact of exporting on firm productivity and other outcomes. We find that firms whose export destinations experience greater currency depreciation have slower export growth and that export growth leads to increases in firm productivity and other firm performance measures. Consistent with “learning-by-exporting,” the productivity impact of export growth is greater when firms export to more developed countries.