A Study of Social Network Effects on the Stock Market

Consumer confidence is an economic indicator that measures the degree of optimism that consumers feel about the overall state of the economy as well as their personal financial situation. The authors measure consumer sentiment via analysis of social networks and show that such sentiment affects stock prices; specifically, the S&P 500 and the Dow Jones Industrial Average. Shiller, Fischer and Freidman [1984], Fisher and Statman [2003], and Bremmer [2008] also examine the influence of consumer sentiment, measured from Conference Board data, on the stock market. The authors add to this literature by creating a measure of consumer confidence by utilizing Twitter data and by examining the relationship between our measure of consumer sentiment and the S&P 500 and the Dow. They implemented lexicographic analysis of Twitter data over a three-month period and found that talk intensity of economic issues not only causes shifts in the daily stock market prices, but also has a significant negative effect.     

生活方式、消费者创新性与新产品购买行为的关系

本文在文献研究的基础上归纳出描述和测量生活方式的四个主要维度:时尚意识、领导意识、价格意识和怀旧意识。基于1006位重庆消费者的问卷调查所得数据,检验生活方式、消费者创新性和新产品购买行为三者的关系,发现生活方式能显著地影响消费者创新性,而消费者创新性对新产品购买行为有显著的促进作用,消费者创新性在生活方式与新产品购买行为的关系中起完全中介作用。     

Does consumer confidence affect durable goods spending during bad and good economic times equally?

Recent econometric analysis shows consumer confidence innovations have long lasting effects on economic activities like consumption. Using US data, we show this conclusion is more nuanced when considering an economy that has different potential states. We investigate regime-switching models which use the National Bureau of Economic Research US business cycle expansion and contraction data to create an indicator series that distinguishes bad and good economic times and use this series to investigate impulse responses and variance decompositions. We show the connection between consumer confidence to some types of consumer purchases is important during good economic times, but is relatively unimportant during bad economic times. We also use this type of model to investigate the connection between news and consumer confidence and this connection is also shown to be state dependent. In the context of the animal spirits versus news debate, our findings show that during economic expansions, consumer confidence shocks likely reflect news, while during economic contractions, consumer confidence shocks are consistent with animal spirits. These findings also have important implications for recent policy debates which consider whether confidence boosting policies, like raising inflation expectations on big-ticket items such as automobiles or business equipment, would lead to a faster recovery.     

Boosting confidence: Is there a role for fiscal policy?

This paper investigates the widely held view that expansionary fiscal policy can boost consumer and business confidence, which will stimulate private spending and sustain economic activity. We find evidence in favor of this conjecture, i.e., cuts in direct taxes generate a positive effect on consumer and business confidence, while the same applies in cases of higher non-wage government consumption. However, higher government wage bills and government investment reduce confidence, with the effect being more pronounced when the Debt to GDP ratio is high, possibly because they entail a permanent increase in the size of the public sector, which would have to be financed by higher future taxes.     

Forecasting the Consumer Confidence Index with tree-based MIDAS regressions

The macroeconomic literature has recently uncovered the importance of the consumer confidence variations at driving business cycles. However, it remains a challenge to predict changes in agents'confidence by exploiting the information from ultra high-frequency sentiment data extracted from social media. Based on the mixed data sampling (MIDAS) literature, we propose a new MIDAS method that introduces regression tree-based algorithms into the MIDAS framework. Our method is more flexible at sampling high-frequency lagged regressors compared to existing MIDAS models with tightly parametrized functions of lags. In an out-of-sample forecasting exercise for the Consumer Confidence Index, our results reveal that (i) the proposed procedure exploits more fully the information from historical sentiment data and (ii) our method substantially improves the forecast accuracy and confirms the role of social media at affecting the consumer confidence.     

A mean-variance approach to forecasting with the consumer confidence index

This article refines the way consumer confidence survey data are used in forecasting models. The refinement is easy to describe: it extends existing models by controlling for statistically significant changes in consumer confidence index values. The motivation behind this refinement is simply that not all changes in the confidence index are statistically significant, and mean index values alone provide a noisy signal. Using Michigan Index of Consumer Confidence from 1967 through 2013, we show that controlling for significant versus insignificant changes in the consumer confidence index materially enhances the explanatory power of household expenditure forecasting models.     

The Time Varying Relation Between Consumer Confidence and Equities

We examine the impact of changes in consumer confidence measures on future stock index returns. Our analysis is built on the growing understanding that investor sentiment is an important factor in the stock market. By using frequency dependent regression methods, we show that there is a time-varying relation between consumer confidence and stock returns. Higher levels of consumer confidence imply greater returns in the short term but negative returns in the medium term. However, this effect is only observed for the small firm index. Moreover, there is evidence to suggest that consumer confidence is significantly affected by stock returns in reverse causality.     

France in the global economy: a structural approximate dynamic factor model analysis

This study identifies the main shocks that cause fluctuations in French output and their channels of transmission. It uses a large-dimensional structural approximate dynamic factor model. There are three main findings. First, common shocks, especially demand shocks, which seem to originate from the U.S., play an important role in explaining French economic activity. While international trade, relative prices, and foreign direct investment (FDI) flows are the main channels of transmission, the stock market, consumer confidence, and interest rates also matter. Second, France’s integration with the rest of the world has increased over time. Third, there is some tentative evidence of regional components in explaining French output fluctuations; country-specific components also contribute. The predominance of exogenous factors affecting French output, the asymmetry in the transmission of shocks, and France’s participation in a currency area argue for making French goods, services, and labor markets as flexible as possible.     

Uncertainty and Consumption in Keynes's Theory of Effective Demand

Keynesian uncertainty normally exercises influence over effective demand via private investment. This paper expands the scope of influence of uncertainty to comprise private consumption as well. When private spending is explicitly made subject to uncertainty the individual consumer is forced to take active steps to make the future predictable. Contracted, sticky money prices are key tools in the consumer's efforts to keep uncertainty at a minimum and match earnings with consumption costs. However, even if prices are successfully contracted there is still need for preparedness against contingencies. Consumers therefore regulate their propensity to consume with reference to their confidence in the future: the propensity to consume is high when confidence is strong and low when confidence is weak. Because of its effect on the propensity to consume, consumer confidence exercises a significant influence on macroeconomic activity in general.     

Consumer confidence and rational expectations in the United States compared with the United Kingdom

This paper examines the relationship between consumer confidence and the Rational Expectations Permanent Income Hypothesis in the USA and compares the results with those obtained for the UK. The study expands previous analysis by defining consumption as motor vehicles, goods excluding motor vehicles, and services. The results suggest that predictive ability of the USA's consumer confidence is less than that of the UK, but that contrary to the UK study, confidence does not predict future consumption growth of services and is therefore consistent with Rational Expectations Permanent Income Hypothesis.     

Consumer confidence as a GDP determinant in New EU Member States: a view from a time-varying perspective

This paper offers a pioneer attempt to unveil the time-varying impact of consumer confidence on GDP growth. The empirical analysis is based on a state space model with time-varying coefficients, which is employed on a dataset from 11 New EU Member States. It is shown that the impact of consumer confidence (reflecting the overall uncertainty level in the country) skyrockets in the 2008 Great Recession, providing evidence that the recent crisis was to some extent psychologically governed. After that, the influence of consumer confidence on GDP mostly stabilizes at earlier levels. The EU accession seems not to play an important role in the observed relationship. The obtained conclusions are quite robust across countries and remain intact upon the inclusion of additional control variables in the model. A possible solution for keeping the psychological determinants of the crisis under control is a prompt, coherent, and clearly communicated crisis management policy, which might help preventing a momentous drop of consumer confidence and overall uncertainty.     

消费者信心指数与股票市场收益的实证研究

基于行为金融学的视角，研究消费者信心和股票市场收益的互动关系，结果发现消费者信心指数与殷市收益具有较强的相关性。利用脉）辛响应和方差分解分析消费者信心与股市收益之间的互动关系，结果表明，消费者信心指数能预测一部分收益，股市收益与消费者信心指数间的冲击具有不对称性。     

The Effect of Changes in Monetary Policy on Consumer and Business Confidence

This article examines the response of consumer and business confidence to five measures of change in Australian monetary policy. Actual, expected and surprise increases in the official cash rate target and related interest rates are shown to negatively impact consumer sentiment. Business confidence is less affected by increases in the cash rate target, but is negatively affected by an increase in the 90-day bank accepted bill rate. Tests for model stability and asymmetries in the response of sentiment to increases and decreases in interest rates otherwise find only limited evidence for monetary policy having a perverse signalling effect on sentiment.     

怎样解释中国经济波动： 基于BCA的分析

本文应用Business Cycle Accounting（BCA）方法,分析效率、劳动、投资和政府消费等扭曲性楔子对中国经济波动的影响。基于一个基本新古典增长模型,本文先从总量数据中估算出这些楔子的实现值,再分别将它们反馈到模型中以进行模拟实验;实验结果表明,只有效率楔子对解释中国经济波动是最重要的。这个发现为解释中国经济波动提供了一种新思路——让经济冲击或经济结构因素产生全要素生产率（TFP）波动,借此来引起其他相关变量的波动;这样建立的模型等价于带有效率楔子的基本增长模型,因此能够解释总量数据的大部分波动,而它们揭示的经济波动机制更有意义。经济周期政策应该更加关注TFP的变动,因为能够影响TFP的政策措施才能更有效地作用于经济波动。     

Risk aversion and risk loving in the small: a decomposition of the multivariate risk premium

This note proposes a decomposition of the familiar scalar multivariate risk premium into components which can be easily interpreted in the context of consumer theory. The premium under consideration is the standard one used to ascertain the impact of price and income risk on consumer welfare. This proposed premium decomposition allows for a more intuitive identification of the detrimental and beneficial effects that arise from income and price risk. As an illustrative example, this decomposition is used to ascertain the welfare effects arising from the price fluctuations experienced by UK households over the period 1963–97.     

Network effects and the choice of mobile phone operator

This paper explores the role of network effects in the consumer’s choice of mobile phone operators in the UK. It contributes to the existing literature by taking a new approach to testing for direct network effects and by using individual-level data, which allows to analyse the impact that the immediate social network has on consumer choice in network markets. For our empirical analysis we use two sources of data: market-level data from the British telecommunications regulator OFCOM and micro-level data on consumers’ usage of mobile telephones from the survey, Home OnLine. We estimate two classes of models which illustrate the role of network effects. The first is an aggregate model of the comparative volume of on-net and off-net calls. This finds that the proportion of off-net calls falls as mobile operators charge a premium for off-net calls, but even in the absence of any price differential between on-net and off-net, there is still a form of pure network effect, where a disproportionate number of calls are on-net. The second is a model of the individual consumer’s choice of operator. This finds that individual choice shows considerable inertia, as expected, but is heavily influenced by the choices of others in the same household. There is some evidence that individual choice of operator is influenced by the total number of subscribers for each operator, but a much stronger effect is the operator choice of other household members.     

Further evidence on the credit view: the case of Finland

The present paper provides further empirical evidence on the credit view (i.e., bank credit availability has a positive impact on macroeconomic activity) by investigating the case of Finland. The Finnish economy suffered a severe recession in the early 1990s that was marked by widespread banking crisis and extensive government intervention. Using monthly data for the 1980–1996 period, unrestricted and restricted vector autoregression (VAR) models with GDP, money supply, consumer prices, bank credit, and exports were estimated. It is found that, while money supply had the largest effect on economic output, bank credit exhibited a fairly strong effect on output that exceeded price effects for the most part. Exports had little impact on fluctuations in GDP but did help to explain industrial output changes over time. Based on these results, it is concluded that there is empirical support for the credit view in Finland. By implication, government intervention in Finland to restore safety and soundness during the banking crisis likely limited further damage to the macroeconomy associated with disruption of credit intermediation services.     

我国食品安全规制间接效果评价 ——以乳制品安全规制为例

食品安全关乎消费者生命健康，食品安全规制迫切需要加强已经成为整个社会的共识。检验食品安全规制政策实施效果是有效解决食品安全问题的重要前提。本文从消费者营养健康视角出发，采用CHNS数据，基于反映政策冲击影响的倍差法，并结合通过样本筛选控制协变量影响因素的倾向得分匹配方法，分析食品安全规制对乳制品消费量、消费者营养健康的影响，对规制的间接效果进行评价。研究结果显示，规制的不断加强使我国消费者对乳制品的消费信心得到恢复，促进了乳制品消费量的增长，并有助于改善消费者的营养水平和健康状况。但总体而言，规制促进作用并不显著。这恰恰说明政府单一主体的食品安全规制绩效较低，因此构建食品安全规制的多主体合作治理框架，对于改善规制绩效具有重要意义。     

The impact of oil price changes on Spanish and euro area consumer price inflation

This paper assesses the impact of oil price changes on Spanish and euro area consumer price inflation. We find that the inflationary effect of oil price changes in both economies is limited, even though crude oil price fluctuations are a major driver of inflation variability. The impact on Spanish inflation is found to be somewhat higher than in the euro area. In both economies, direct effects have increased in the last decade, reflecting the higher expenditure share of households on refined oil products, whereas indirect and second-round effects seem to be losing importance.     

TFP冲击对两部门经济增长的影响研究

首先将两位数工业行业分为投资品部门和消费品部门,然后通过DEA-Malmquist指数方法测算出了2006—2017年的两部门技术进步效率及其变化情况,两部门的全要素生产率(TFP)变化指数都超过了1,且投资品部门的TFP变化指数相对于消费品部门更高,投资品部门TFP变化指数呈波动上升趋势而消费品部门呈波动下降趋势,最后运用PVAR模型考察了两部门TFP冲击对产出、投资和就业的影响。TFP冲击的结果显示:两部门TFP冲击对经济发展都具有扩张效应,促进了产出增加,且TFP冲击对投资品部门的影响作用更大,消费品部门的TFP冲击对投资和就业具有负向影响且大于投资品部门的影响。