kien nguyen - Academia.edu (original) (raw)
Papers by kien nguyen
This paper examines the impact of trade and investment liberalization on the wage skill premium b... more This paper examines the impact of trade and investment liberalization on the wage skill premium between skilled and unskilled workers in Vietnamese manufacturing. The result from an econometric analysis using a firm-level dataset reveals the important role of trade liberalization as an impetus for narrowing the skill premium. There is also evidence that foreign investment has a significant effect on widening the wage skill premium. More importantly, export-oriented foreign investment is likely to play an important role in the determination of the wage skill premium in the Vietnamese manufacturing.
This study investigates the effect of export expansion on employment generation in the context of... more This study investigates the effect of export expansion on employment generation in the context of the market-oriented economic reform implemented in Vietnam since the early 1990s. Following a stage-setting survey of manufacturing performance and employment generation in the reform era, it undertakes an empirical analysis using a standard inter-industry input-output framework to examine the contribution of manufacturing exports to job creation, employing Input-Output tables for Vietnam in 2000 and 2007. The findings show that manufacturing exports created about seven million new jobs between 2000 and 2007 through direct effects on the manufacturing sector, as well as through spillover effects across sectors in the overall economy. In particular, export-oriented manufacturing contributed over half of the total increase in manufacturing employment during the period 2000-07.
Journal of Economic Studies
This paper examines the wage differentials between foreign invested enterprises (FIEs) and domest... more This paper examines the wage differentials between foreign invested enterprises (FIEs) and domestic enterprises in Vietnamese manufacturing. An analysis is undertaken by means of descriptive statistics and econometric investigation using a firm-level dataset from the Enterprise Survey of Vietnam. It is shown that there has been a positive wage differential between FIEs and domestic enterprises over the period 2000-09. More importantly, the FIE-domestic wage differentials are found to be significantly positive after controlling for differences in capital intensity, size, firm location and industry features. Furthermore, statistical evidence shows that these wage differentials narrowed over the period 2006-09.
This paper examines wage differentials for four types of workers employed by medium-large (20 or ... more This paper examines wage differentials for four types of workers employed by medium-large (20 or more employees) wholly-foreign multinational enterprises (WFs), joint-venture multinationals (JVs), state-owned enterprises (SOEs), and domestic private firms in Vietnamese manufacturing in 2009. When all sample firms were combined, unconditional JV-private and WF-private wage differentials were 106-124 percent for managers, 78-87 percent for professionals and technicians, 56-68 percent for clerical and support workers, and 22-48 percent for production workers. Corresponding, conditional wage differentials which account for the influences of worker education and sex, in addition to firm capital intensity and size, were positive and usually significant, but smaller, 72-78 percent for managers, 32-36 percent for professionals and technicians, 23-28 percent for clerical and support workers and 15-16 percent for production workers. SOE-private differentials were all much smaller. When estima...
This paper examines wage differentials among medium-large (20 or more employees) wholly-foreign m... more This paper examines wage differentials among medium-large (20 or more employees) wholly-foreign multinational enterprises (WFs), joint-venture multinationals (JVs), state-owned enterprises (SOEs), and domestic private firms in Vietnamese manufacturing. The analysis focuses on 2009 because it is possible to examine wage differentials after accounting for the influences of two measures of worker quality, educational background and occupation. Simple comparisons in large samples of 11 industries combined indicate that averages wages in JVs were about 92 percent higher than in private firms in 2009, SOEs and WFs paid 57 and 54 percent more than private firms, respectively. Corresponding, conditional differentials that control for the influences of worker education and occupation, as well as capital intensity, size, and shares of female workers, were substantially smaller, but positive and significant in large samples. Wage levels and differentials varied substantially among industries. ...
Asean Economic Bulletin, 2009
IFIP – The International Federation for Information Processing, 2008
Proceedings of the 2010 American Control Conference, 2010
2009 IEEE International Conference on Communications, 2009
Proceedings of the 2010 Symposium on Information and Communication Technology - SoICT '10, 2010
Less cooperative iris identification systems at a distance and on the move often suffers from poo... more Less cooperative iris identification systems at a distance and on the move often suffers from poor resolution. The lack of pixel resolution significantly degrades the iris recognition performance. Super-resolution has been considered to enhance resolution of iris images. This paper proposes a pixelwise super-resolution technique to reconstruct a high resolution iris image from a video sequence of an eye. A
Proceedings of the 6th International Wireless Communications and Mobile Computing Conference on ZZZ - IWCMC '10, 2010
Sensor network MAC protocols use a duty cycling mechanism and a multi-hop transmission to create ... more Sensor network MAC protocols use a duty cycling mechanism and a multi-hop transmission to create a good trade-off between their energy efficiency and latency. The nodes in duty cycling multi-hop MAC protocols such as RMAC periodically sleep/listen during the operational cycle to reduce their energy consumption by idle listening; and the listening period is usually long in order to support
Proceedings of the 6th International Wireless Communications and Mobile Computing Conference on ZZZ - IWCMC '10, 2010
This work addresses the uneven energy consumption problem in data gathering sensor networks where... more This work addresses the uneven energy consumption problem in data gathering sensor networks where the nodes closer to the sink tend to consume more energy than those of the farther nodes. This energy unfairness can significantly shorten the life time of a sensor network. We propose a novel cross-sensor coding technique using On-Off keying which exploits (a) the trade-off between
With the recent surge of wireless home networks, it is increasingly important to employ admission... more With the recent surge of wireless home networks, it is increasingly important to employ admission control mechanisms in order to enhance the performance of the wireless multimedia applications. In this paper, we extended the work in (1) for performing distributed admission control in a collaborative wireless environment. In particular, we provide an in-depth analysis on the throughput and jitter of
International Journal of Distributed Sensor Networks, 2011
The 16th Asia-Pacific Network Operations and Management Symposium, 2014
2014 IEEE 11th Consumer Communications and Networking Conference (CCNC), 2014
2014 International Wireless Communications and Mobile Computing Conference (IWCMC), 2014
2014 Eighth International Conference on Complex, Intelligent and Software Intensive Systems, 2014
2014 IEEE Fifth International Conference on Communications and Electronics (ICCE), 2014
ABSTRACT Wireless multihop access network is an appropriate approach to providing Internet access... more ABSTRACT Wireless multihop access network is an appropriate approach to providing Internet access to applications such as last-mile and rural area communications, disaster recovery, etc. However, the realization of the existing wireless access networks is still limited. The main reasons are that they require particular hardware and software to be installed at pre-defined locations, or it is costly to deploy enough density nodes in a vast area for network formation. This paper proposes a novel approach to automatically set up multihop access networks, bringing Internet connectivity to users by leveraging their commodity mobile devices. In this work, a single Wifi interface equipped mobile device is transformed into a virtual access point (VAP) using wireless virtualization. As a result, each node works in both the station (STA) and the VAP modes to connect with each other forming tree-based networks which extend the Internet connectivity. Users can access Internet through the proposed network easily as if they are connected to the conventional access points (APs) and unconsciously contribute to the network extension. A prototype has been implemented and evaluated to confirm the feasibility as well as the effectiveness of the proposed approach.
This paper examines the impact of trade and investment liberalization on the wage skill premium b... more This paper examines the impact of trade and investment liberalization on the wage skill premium between skilled and unskilled workers in Vietnamese manufacturing. The result from an econometric analysis using a firm-level dataset reveals the important role of trade liberalization as an impetus for narrowing the skill premium. There is also evidence that foreign investment has a significant effect on widening the wage skill premium. More importantly, export-oriented foreign investment is likely to play an important role in the determination of the wage skill premium in the Vietnamese manufacturing.
This study investigates the effect of export expansion on employment generation in the context of... more This study investigates the effect of export expansion on employment generation in the context of the market-oriented economic reform implemented in Vietnam since the early 1990s. Following a stage-setting survey of manufacturing performance and employment generation in the reform era, it undertakes an empirical analysis using a standard inter-industry input-output framework to examine the contribution of manufacturing exports to job creation, employing Input-Output tables for Vietnam in 2000 and 2007. The findings show that manufacturing exports created about seven million new jobs between 2000 and 2007 through direct effects on the manufacturing sector, as well as through spillover effects across sectors in the overall economy. In particular, export-oriented manufacturing contributed over half of the total increase in manufacturing employment during the period 2000-07.
Journal of Economic Studies
This paper examines the wage differentials between foreign invested enterprises (FIEs) and domest... more This paper examines the wage differentials between foreign invested enterprises (FIEs) and domestic enterprises in Vietnamese manufacturing. An analysis is undertaken by means of descriptive statistics and econometric investigation using a firm-level dataset from the Enterprise Survey of Vietnam. It is shown that there has been a positive wage differential between FIEs and domestic enterprises over the period 2000-09. More importantly, the FIE-domestic wage differentials are found to be significantly positive after controlling for differences in capital intensity, size, firm location and industry features. Furthermore, statistical evidence shows that these wage differentials narrowed over the period 2006-09.
This paper examines wage differentials for four types of workers employed by medium-large (20 or ... more This paper examines wage differentials for four types of workers employed by medium-large (20 or more employees) wholly-foreign multinational enterprises (WFs), joint-venture multinationals (JVs), state-owned enterprises (SOEs), and domestic private firms in Vietnamese manufacturing in 2009. When all sample firms were combined, unconditional JV-private and WF-private wage differentials were 106-124 percent for managers, 78-87 percent for professionals and technicians, 56-68 percent for clerical and support workers, and 22-48 percent for production workers. Corresponding, conditional wage differentials which account for the influences of worker education and sex, in addition to firm capital intensity and size, were positive and usually significant, but smaller, 72-78 percent for managers, 32-36 percent for professionals and technicians, 23-28 percent for clerical and support workers and 15-16 percent for production workers. SOE-private differentials were all much smaller. When estima...
This paper examines wage differentials among medium-large (20 or more employees) wholly-foreign m... more This paper examines wage differentials among medium-large (20 or more employees) wholly-foreign multinational enterprises (WFs), joint-venture multinationals (JVs), state-owned enterprises (SOEs), and domestic private firms in Vietnamese manufacturing. The analysis focuses on 2009 because it is possible to examine wage differentials after accounting for the influences of two measures of worker quality, educational background and occupation. Simple comparisons in large samples of 11 industries combined indicate that averages wages in JVs were about 92 percent higher than in private firms in 2009, SOEs and WFs paid 57 and 54 percent more than private firms, respectively. Corresponding, conditional differentials that control for the influences of worker education and occupation, as well as capital intensity, size, and shares of female workers, were substantially smaller, but positive and significant in large samples. Wage levels and differentials varied substantially among industries. ...
Asean Economic Bulletin, 2009
IFIP – The International Federation for Information Processing, 2008
Proceedings of the 2010 American Control Conference, 2010
2009 IEEE International Conference on Communications, 2009
Proceedings of the 2010 Symposium on Information and Communication Technology - SoICT '10, 2010
Less cooperative iris identification systems at a distance and on the move often suffers from poo... more Less cooperative iris identification systems at a distance and on the move often suffers from poor resolution. The lack of pixel resolution significantly degrades the iris recognition performance. Super-resolution has been considered to enhance resolution of iris images. This paper proposes a pixelwise super-resolution technique to reconstruct a high resolution iris image from a video sequence of an eye. A
Proceedings of the 6th International Wireless Communications and Mobile Computing Conference on ZZZ - IWCMC '10, 2010
Sensor network MAC protocols use a duty cycling mechanism and a multi-hop transmission to create ... more Sensor network MAC protocols use a duty cycling mechanism and a multi-hop transmission to create a good trade-off between their energy efficiency and latency. The nodes in duty cycling multi-hop MAC protocols such as RMAC periodically sleep/listen during the operational cycle to reduce their energy consumption by idle listening; and the listening period is usually long in order to support
Proceedings of the 6th International Wireless Communications and Mobile Computing Conference on ZZZ - IWCMC '10, 2010
This work addresses the uneven energy consumption problem in data gathering sensor networks where... more This work addresses the uneven energy consumption problem in data gathering sensor networks where the nodes closer to the sink tend to consume more energy than those of the farther nodes. This energy unfairness can significantly shorten the life time of a sensor network. We propose a novel cross-sensor coding technique using On-Off keying which exploits (a) the trade-off between
With the recent surge of wireless home networks, it is increasingly important to employ admission... more With the recent surge of wireless home networks, it is increasingly important to employ admission control mechanisms in order to enhance the performance of the wireless multimedia applications. In this paper, we extended the work in (1) for performing distributed admission control in a collaborative wireless environment. In particular, we provide an in-depth analysis on the throughput and jitter of
International Journal of Distributed Sensor Networks, 2011
The 16th Asia-Pacific Network Operations and Management Symposium, 2014
2014 IEEE 11th Consumer Communications and Networking Conference (CCNC), 2014
2014 International Wireless Communications and Mobile Computing Conference (IWCMC), 2014
2014 Eighth International Conference on Complex, Intelligent and Software Intensive Systems, 2014
2014 IEEE Fifth International Conference on Communications and Electronics (ICCE), 2014
ABSTRACT Wireless multihop access network is an appropriate approach to providing Internet access... more ABSTRACT Wireless multihop access network is an appropriate approach to providing Internet access to applications such as last-mile and rural area communications, disaster recovery, etc. However, the realization of the existing wireless access networks is still limited. The main reasons are that they require particular hardware and software to be installed at pre-defined locations, or it is costly to deploy enough density nodes in a vast area for network formation. This paper proposes a novel approach to automatically set up multihop access networks, bringing Internet connectivity to users by leveraging their commodity mobile devices. In this work, a single Wifi interface equipped mobile device is transformed into a virtual access point (VAP) using wireless virtualization. As a result, each node works in both the station (STA) and the VAP modes to connect with each other forming tree-based networks which extend the Internet connectivity. Users can access Internet through the proposed network easily as if they are connected to the conventional access points (APs) and unconsciously contribute to the network extension. A prototype has been implemented and evaluated to confirm the feasibility as well as the effectiveness of the proposed approach.