Preventing Customer Churn in the Mobile Telecommunication Industry: Is Mobile Money Usage the Missing Link?

The paper examines the influence of mobile money usage on customer continuance intention (CCI). The study conveniently sampled 507 mobile money users to test the research model using PLS-SEM. Satisfaction, trust and active usage of mobile money were found to influence CCI. Active usage of mobile money was also confirmed as a mediator in the relationship between satisfaction and trust, on customer continuance. The study thus validated a theoretical model of customer continuance intention as it relates to mobile money usage. It has also provided a new perspective on managing customer churn in an emerging market.     

The economics of the super‐multiplier: A comprehensive treatment with labor markets

This paper links the super‐multiplier to Keynesian macroeconomics, showing it to be the most Keynesian of growth perspectives. Next, the paper shows that the super‐multiplier is a micro‐economically coherent theory of investment and capital accumulation. Firms’ decisions regarding capital accumulation coordinate demand and supply growth in goods markets. The paper then explores the implications of incorporating the super‐multiplier in the neo‐Kaleckian and Cambridge growth models. Lastly, it shows how labor markets and unemployment can be added into super‐multiplier models to provide a comprehensive growth model that addresses Solow's (1956, Journal of Economics, 70, 65–94) labor market knife‐edge problem. Incorporating labor markets does not change the fundamental super‐multiplier result that growth is determined by the growth of autonomous demand.     

Magic mirror in my hand … How trade mirror statistics can help us detect illegal financial flows

Misreporting tricks of different sorts applied to the transfer of goods between different countries are typically exploited by criminals worldwide for money laundering ends. The main international anti‐money laundering organisations started paying attention to this phenomenon, dubbed “trade‐based money laundering” (TBML), a long time ago, but the failure to develop appropriate analytical tools has reportedly dogged preventive actions. Nonetheless, literature has widely advocated the possibility that the analysis of inconsistencies in mirrored bilateral trade data could provide some help. By building on previous contributions in the field, this work sets up a model factoring in the main structural determinants of discrepancies between mirrored data concerning Italy's 2010 to 2013 external trade at a highly detailed (6‐digit) level of goods classification for each partner country. Point estimates of freight costs are used to net each observation of the corresponding cif/fob discrepancy. The regression estimates are then deployed in order to compute TBML risk indicators at a country/4‐digit product level. Based on the indicators, rankings of countries and product lines can be compiled, which may be used for a risk‐driven search of potential illegal commercial transactions.     

共享单车预付押金的法律性质及其法律规制

共享单车预付押金收取模式的异变和返还期限的错配与分离,颠覆了“一物一押”的传统押金结构,异变为“一人一押、一物多押”“一辆单车、多份押金”的新型结构,并使共享单车预付押金朝金融化衍变而呈现出类金融色彩。在免押模式尚不足以全面施行的条件下,应采取特殊的规制方法,通过规范押金收取协议,对预付押金进行账户隔离和妥善保管,增强押金收取、存管和退还的信息透明度,合理利用押金孳息建立行业风险基金以及统一监管机构,有效保护共享经济预付押金的财产安全。     

FIRE SALES FORENSICS: MEASURING ENDOGENOUS RISK

We propose a tractable framework for quantifying the impact of loss‐triggered fire sales on portfolio risk, in a multi‐asset setting. We derive analytical expressions for the impact of fire sales on the realized volatility and correlations of asset returns in a fire sales scenario and show that our results provide a quantitative explanation for the spikes in volatility and correlations observed during such deleveraging episodes. These results are then used to develop an econometric framework for the forensic analysis of fire sales episodes, using observations of market prices. We give conditions for the identifiability of model parameters from time series of asset prices, propose a statistical test for the presence of fire sales, and an estimator for the magnitude of fire sales in each asset class. Pathwise consistency and large sample properties of the estimator are studied in the high‐frequency asymptotic regime. We illustrate our methodology by applying it to the forensic analysis of two recent deleveraging episodes: the Quant Crash of August 2007 and the Great Deleveraging following the default of Lehman Brothers in Fall 2008.     

略论中国经济的流动性过剩——基于经济学视角

在总结了目前理论界对流动性过剩的观点的基础上,分析了中国经济的流动性过剩的现状,并从货币的供给与需求的角度分析了其产生的根源,最后提出了治理中国经济流动性过剩问题的对策与建议。     

企业集团货币资金最佳持有量的确定及其量化管理策略探析

货币资金在集团企业的实物资产中占据非常重要地位。加强货币资金管理对保障企业集团的正常经济运作和提高经济效益意义重大。要确定企业集团货币资金的最佳持有量,并在其基础上量化货币资金的管理,才能使企业集团货币资金控制真正落到实处。     

货币时间价值与时间货币价值概念辨析

本文对货币时间价值和时间货币价值概念进行了辨析,前者主要体现货币资金在财富积累过程中所起作用,后者主要体现时间作为一种资源在财富积累过程中所起作用。     

能源研发与内生经济增长

本文在内生经济增长理论的基础上,建立含能源研发的经济增长模型,借助动态优化的方法,分析能源研发对经济增长的关键作用。研究结果表明:能源研发活动具有规模收益递增的特点,对能源供应源的扩张具有特殊贡献,有助于经济摆脱能源的约束,实现可持续增长。     

Oil Crisis,Market Reforms,and Human Welfare： An Econometric Analysis of the Australian Economy

As an active trader in international crude oil and petroleum product markets, Australia＇s human welfare is affected by oil crisis and contagion from the perspectives of economic growth, income inequality, and environmental sustainability. This paper investigates the impacts of oil price shocks upon Australia＇s gross domestic product （GDP） growth, Gini coefficients, and carbon dioxide emissions per capita from 1970 to 2012 with yearly frequency. Hypotheses concerning whether Australia＇s economic immunity against oil crisis is affected after the deregulation of oil market and whether endogenous oil price shocks account for more variations in human welfare than exogenous oil price shocks are tested. The methodologies include a theoretic model and a series of econometric tests. For the short-run dynamics, oil price is integrated into the model both linearly and non-linearly. Oil price shocks are categorized into exogenous and endogenous shocks. The conclusions are that inflated oil prices exert mainly non-linear negative impacts upon human welfare indicators and exogenous shocks induce endogenous shocks through labor price, Consumer Price Index （CPI）, interest rate, and exchange rate. For the long-run equilibrium, non-linear shocks＇ effects decay more slowly than linear shocks and the impacts of endogenous shocks last longer than that of exogenous shocks. Finally, oil market policies are evaluated and proposed.