瞪羚企业认定是否提高了企业创新质量

瞪羚企业认定是我国创新驱动发展战略的重要措施，旨在培育高科技、高成长性企业，促进科技进步和经济高质量发展。为研究瞪羚企业认定能否切实提升企业创新质量，利用2005-2018年新三板企业数据和PSM-DID方法研究瞪羚企业认定对企业创新质量的影响及作用机制。结果发现：①瞪羚企业认定对企业创新质量有正向促进效应，且这种效应在地区和企业层面均存在异质性；②人力投入是瞪羚企业认定发挥作用的重要渠道；③制度因素对瞪羚企业认定影响的调节效应有限，意味着我国市场化改革和知识产权保护工作仍需进一步完善。最后，为政府有效开展瞪羚企业认定工作、促进企业提高创新质量提出政策建议。     

Factors influencing buying behavior of Lebanese consumers towards fashion brands during economic crisis: A qualitative study

The purpose of this article is to contribute to an understanding of the impact of the Lebanese economic crisis on fashion buying behavior. It uses a qualitative approach by conducting semi-structured interviews with 29 Lebanese consumers. The study reveals that consumer fashion purchases are motivated by emotional, social, and functional drivers. It also indicates that subjective norms, such as societal and cultural values dictate buying behaviors. The findings provide further insights into social media and highlight its influence on shaping trends and making fashion products desirable. The article concludes that Lebanese consumers exhibit impulsive buying behavior, and explains how fashion brands can remain relevant amidst a wrenching economic crisis.     

政府补助对科技中小型企业成长的影响机理

采用创业板2011—2016年251家科技型中小企业数据，从研发经费投入和技术人员投入两个方面检验技术创新投入在政府补助对企业成长影响的中介作用，以及市场化进程和要素市场发育程度的调节作用。实证研究发现：①研发经费投入在政府补助对企业成长的影响中有中介作用，技术人员投入在政府补助对企业成长的影响中中介作用不明显；②市场化进程越高的地区，政府补助通过研发经费投入对企业成长的影响越强，政府补助通过技术人员投入对企业成长的影响也越强；③要素市场发育程度越好的地区，研发经费投入在政府补助与企业成长间的中介作用越强，技术人员投入在政府补助与企业成长间的中介作用也越强。     

家族企业创业导向与企业成长：社会情感财富与制度环境的调节作用

旨在研究家族企业创业导向对企业成长的影响，并探讨社会情感财富和制度环境在二者之间的调节作用。运用8个省份家族企业问卷调查数据进行分析检验，结果表明：①家族企业创业导向对企业成长具有显著正向影响；②社会情感财富不同对家族企业创业导向与企业成长关系的影响不同，家族控制正向调节家族企业创业导向与企业成长关系，家族代际传承意愿负向调节家族企业创业导向与企业成长关系，即随着家族控制意愿的增强或家族代际传承意愿的降低，家族企业创业导向对企业成长的影响增大；③制度环境正向调节家族企业创业导向与企业成长关系，即随着制度环境的改善，家族企业创业导向对企业成长的影响增大。     

技术-经济范式赶超机遇与中国创新政策转型

新技术革命为我国带来了新的技术赶超机遇，但也加剧了国家间的技术竞争。“中兴事件”暴露出我国核心技术自主创新能力短板。根据佩蕾丝、弗里曼等对技术革命浪潮的研究，当前我国正处在新旧技术-经济范式转换阶段，处于技术赶超机遇期。美、德两国在19世纪下半叶赶超英国的经验给我国的启示是，以追踪世界新技术-经济范式为导向的创新政策是我国实现技术赶超的必要条件。要抓住技术赶超机遇就必须反思目前我国创新政策缺陷，通过创新政策转型和创新，营造促进民族企业创新的社会经济环境，从而引导创新环境特征转变、促进向世界新技术-经济范式转换并跻身于并跑和领跑行列。因此，加强金融规制、系统性支持民族创新企业、培育民族高技术产业创新集群、加大人力资本投资力度和鼓励人才流动等成为我国创新政策转型的重要内容。     

The impacts of value chain upgrading on the export of processed food

Upgrading in global value chains (GVCs) is an important path for developing countries to move along to capture higher benefits. Several qualitative studies of GVCs have identified two main upgrading types: economic (product, process, functional, and inter-sectoral) and social upgrading. The upgrading concept is widespread in productive sectors such as processed food, which has become a key export for developing countries. However, they have confronted multiple product standards required by global buyers. This study uses a case study of Thailand’s processed food exports (TPFEs). Although Thailand is a leading exporter of processed food, the country needs to upgrade in many areas related to production to meet global product standards and requirements. If Thailand fails to comply with global product standards, it will lose its export competitiveness. This study uses a gravity model to evaluate the impact of economic and social upgrading (EUP and SUP) on TPFEs. Our results show that upgrading types are significant in TPFEs, particularly for exports to developed countries. Process upgrading has a negative impact on TPFEs because of increased production costs to comply with product standards. However, process upgrading can lead to increased producers’ and exporters’ knowledge about how to comply with international standards. Consequently, process upgrading exhibits a lagged positive effect on TPFEs.     

Measuring Farm and Market Level Economic Impacts of Improved Maize Production Technologies in Ethiopia: Evidence from Panel Data

While it is often recognised that agricultural technology adoption decisions are intertwined and best characterised by multivariate models, typical approaches to examining adoption and impacts of agricultural technology have focused on single technology adoption choice and ignored interdependence among technologies. We examine farm‐ and market‐level impacts of multiple technology adoption choices using comprehensive household survey data collected in 2010/11 and 2012/13 in Ethiopia. Economic surplus analysis combined with panel data switching endogenous regression models are used to compute the supply shift parameter (K‐shift parameter), while at the same time controlling for the endogeneity inherent in agricultural technology adoption among farmers. We find that our improved technology set choices have significant impacts on farm‐level maize yield and maize production costs, where the greatest effect appears to be generated when various technologies are combined. The change in maize yield and production costs results in an average 26.4% cost reduction per kilogram of maize output (the K‐shift parameter). This increases the producer and consumer surpluses by US$ 140 and US$ 105 million per annum, respectively. These changes in economic surplus help to reduce the number of poor people by an estimated 788 thousand per year. We conclude that deliberate extension efforts and other policies that encourage integration of technologies are important for maize technologies to yield their full potential at both farm and market levels.     

China and international market integration: Evidence from the law of one price in the Middle East and Africa

We model market integration in the Middle East and Africa by analyzing price dispersion and testing the law of one price (LOP) on highly-comparable actual local retail prices of 135 goods and services across 23 countries in the region over the period of 1990–2016. Second-generation panel estimators are applied to four price benchmarks: Regional average, South Africa, China, and US prices. Cross-regional price dispersion diminishes considerably over time up to 2008, particularly for non-tradeables around China price. The test of LOP indicates the percentage of convergent prices is highest in China price benchmark, followed by US, South Africa, and regional average benchmarks. Direct estimation of the convergence speed confirms this order. Overall, the results show evidence of increasing market integration in Middle East and Africa but it appears to be driven by global forces and, especially, the rise of China as a new economic power. The results show that some emerging market economies, such as China, can step up and promote integration while traditional economic powerhouses, such as the USA and UK, disengage from international economic relations.     

中国海洋产业增长极选择研究

21 世纪是海洋的世纪，海洋经济在国民经济中起着举足轻重的作用，合理的发展模式对推动海洋产业经济发展尤为重要。本文以增长极理论为指导，采用不平衡发展模式、主成分分析法及聚类分析法对中国海洋产业经济增长极选择进行实证分析，结果表明：中国应以海洋渔业、滨海旅游业及海洋交通运输业作为主导产业进行发展，并确定其海洋产业增长极的地位。以此为契机，本文还进一步分析评价了海洋产业增长极的发展状况，以确定海洋产业发展战略，为中国海洋产业经济增长极的培育及国家海洋产业经济发展提供参考支撑。     

Viewpoint: Soda taxes – Four questions economists need to address

The popularity of soda taxes as a public health policy has grown rapidly in the last few years. While the evidence that the tax works in reducing the purchases of soda is emerging, there are a number of questions that are yet to be answered before the broader effectiveness of this measure can be determined. Beyond health effects, there is more specifically a need to better understand the economic mechanisms of change, redistributive effects, as well as causal and spillover effects in food systems and economy more broadly.