WEALTH EFFECTS AND MACROECONOMIC DYNAMICS

The effect of wealth on consumption is an issue of long‐standing interest to economists. Conventional wisdom suggests that fluctuations in household wealth have driven major swings in economic activity both in the United States and abroad. This paper considers the so‐called consumption wealth effects. There is an extensive existing literature on wealth effects that has yielded some insights. For example, research has documented the relationship between aggregate household wealth and aggregate consumption over time, and a large number of household‐level studies suggest that wealth effects are larger for households facing credit constraints. However, there are also many unresolved issues regarding the influence of household wealth on consumption. We review the most important of these issues and argue that there is a need for much more research in these areas as well as better data sources for conducting such analysis.     

THE EVOLUTION OF STOCK MARKET EFFICIENCY OVER TIME: A SURVEY OF THE EMPIRICAL LITERATURE

Abstract This paper provides a systematic review of the weak‐form market efficiency literature that examines return predictability from past price changes, with an exclusive focus on the stock markets. Our survey shows that the bulk of the empirical studies examine whether the stock market under study is or is not weak‐form efficient in the absolute sense, assuming that the level of market efficiency remains unchanged throughout the estimation period. However, the possibility of time‐varying weak‐form market efficiency has received increasing attention in recent years. We categorize these emerging studies based on the research framework adopted, namely non‐overlapping sub‐period analysis, time‐varying parameter model and rolling estimation window. An encouraging development is that the documented empirical evidence of evolving stock return predictability can be rationalized within the framework of the adaptive markets hypothesis.     

RISE OF THE FIDUCIARY STATE: A SURVEY OF SOVEREIGN WEALTH FUND RESEARCH

We survey the literature documenting the rise of sovereign wealth funds (SWFs), which, with assets under management of over $5.4 trillion at year‐end 2014, are a major force in global finance. Research papers have analyzed the evolution of SWFs from stabilization funds to stand‐alone wealth management funds; we both survey this research and show that more than 25 countries have launched or proposed new SWFs since January 2008. The most salient and controversial feature of SWFs is that they are state‐owned; we survey the existing literature on state ownership and discuss what this predicts about the efficiency and beneficence of government control of SWF assets. We discuss the documented importance of SWF funding sources (oil sales revenues versus excess reserves from export earnings) and survey the normative literature describing how SWFs should allocate funds. We then summarize the empirical literature studying how SWFs actually do allocate funds—across asset classes, geographically, and across industries. We document that most SWF equity investments in publicly traded firms involve cross‐border purchases of sizeable minority stakes (median around 20%) in target firms, with a strong preference for investments in the financial sector. Next, we assess empirical studies examining the impact of SWF stock investments on target firm financial and operating performance, and find universal support for a positive announcement period stock price increase of 1–3%. This, however, is significantly lower than the 5% abnormal return documented for stock purchases by comparable privately owned financial investors in recent studies, indicating a “sovereign wealth fund discount.” We conclude by summarizing the lessons of SWF research and pointing out unresolved issues.     

PICKING WINNERS? A SURVEY OF THE MEAN REVERSION AND OVERREACTION OF STOCK PRICES LITERATURE

Abstract. This paper surveys, and suggests a possible synthesis of, two growing literatures concerning stock market anomalies. The first concentrates on identifying contrarian trading rules, capable of generating profits, when securities are segregated on the basis of past earnings, or share price performance. The other simply examines the time-series properties of security prices to find evidence of low-frequency negative autocorrelation, or 'meanreversion'. We seek to articulate the points of interdependence between the two strands of research and the problems of joint hypothesis testing implied by the close relation between 'Overreaction'and 'mean-reversion'tests.     

THE REGIONAL EFFECTS OF MONETARY POLICY: A SURVEY OF THE EMPIRICAL LITERATURE

This survey provides an updated review of the empirical literature on the regional effects of monetary policy in economic activity by means of undertaking a threefold perspective. First, the main methodological dimensions of this literature are examined while pinpointing those modelling or methodological traits that constitute a source of diverging estimates and thereby produce inconclusive evidence. Secondly, the estimates yielded by the literature are summarized by carrying out a cross‐study analysis of the results for each monetary union. By drawing on empirical regularities that are robust across studies, the conclusiveness of the results is assessed, while those monetary unions for which conclusive evidence is still lacking are also identified. Lastly, the sources of regional heterogeneity identified by these studies are reviewed in order to shed some light on the linkage between monetary policy and territorial heterogeneity. As a result of this threefold perspective, this survey delivers overall structured conclusions and updated policy‐relevant lessons. Moreover, various research gaps and emerging topics in the literature are also identified.     

GOVERNMENT SIZE AND GROWTH: A SURVEY AND INTERPRETATION OF THE EVIDENCE

Abstract The literature on the relationship between the size of government and economic growth is full of seemingly contradictory findings. This conflict is largely explained by variations in definitions and the countries studied. An alternative approach – of limiting the focus to studies of the relationship in rich countries, measuring government size as total taxes or total expenditure relative to GDP and relying on panel data estimations with variation over time – reveals a more consistent picture. The most recent studies find a significant negative correlation: an increase in government size by 10 percentage points is associated with a 0.5% to 1% lower annual growth rate. We discuss efforts to make sense of this correlation, and note several pitfalls involved in giving it a causal interpretation. Against this background, we discuss two explanations of why several countries with high taxes seem able to enjoy above average growth. One hypothesis is that countries with higher social trust levels are able to develop larger government sectors without harming the economy. Another explanation is that countries with large governments compensate for high taxes and spending by implementing market‐friendly policies in other areas. Both explanations are supported by ongoing research.     

WALKING DOWN WALL STREET WITH A TABLET: A SURVEY OF STOCK MARKET PREDICTIONS USING THE WEB

‘A blindfolded chimpanzee throwing darts at The Wall Street Journal could select a portfolio that would do as well as the (stock market) experts’ [Malkiel (2003) The efficient market hypothesis and its critics. Journal of Economic Perspectives 17(1): 59–82)]. However, what if this chimpanzee could browse the Internet before throwing any darts? In this paper, we ask whether online news has any influence on the financial market, and we also investigate how much influence it has. We explore the burgeoning literature on the predictability of financial movements using online information and report its mixed findings. In addition, we collate the efforts of various disciplines, including economics, text mining, sentiment analysis and machine learning, and we offer suggestions for future research.     

WORDS, DEEDS AND OUTCOMES: A SURVEY ON THE GROWTH EFFECTS OF EXCHANGE RATE REGIMES

Abstract.  Recent studies on the growth effects of exchange rate regimes offer a wide range of different, sometimes contradictory results. In this paper, we systematically compare three prominent contributions in this field. Using a common data set, a common specification and common estimation methods, we argue that the contradictory findings can be explained by the fact that these studies use regime classifications which reflect fundamentally different aspects of exchange rate policy.     

DEMAND,CUSTOMER BASE‐LINE AND DEMAND RESPONSE IN THE ELECTRICITY MARKET: A SURVEY

The increasing use of demand‐side management, as a tool to reliably meet electricity demands at peak time, has stimulated interest among researchers, consumers and producer organiza‐tions, managers, regulators and policymakers. This research reviews the growing literature on models which are used to study demand, customer base‐line (CBL) and demand response in the electricity market. After characterizing the general demand models, the CBL, based on which the demand response models are studied, is reviewed. Given the experience gained from the review and existing conditions, the study combines an appropriate model for each case for a possible application to the electricity market; moreover, it discusses the implications of the results. In the literature, these aspects are studied independently. The main contribution of this survey is attributed to the treatment of the three issues as sequentially interdependent. The review is expected to enhance the understanding of the demand, CBL and demand response in the electricity market and their relationships. The objective is conducted through a combination of demand and supply side managements in order to reduce demand through different demand response programs during peak times. This enables electricity suppliers to save costly electricity generation and at the same time reduce energy vulnerability.     

OFFSHORING, MULTINATIONALS AND LABOUR MARKET: A REVIEW OF THE EMPIRICAL LITERATURE

Abstract.  This paper reviews the empirical literature on the effects of offshoring and foreign activities of multinational enterprises on developed countries' labour markets. Results suggest that material offshoring worsens wage inequality between skilled and unskilled workers; it also seems to make employment more volatile, by raising the elasticity of labour demand and the risk of job losses. Service offshoring exerts at most small negative effects on total employment, and changes the composition of the workforce in favour of high-skilled white-collar employees. Multinationals tend to substitute domestic and foreign labour in response to changes in relative wages across countries; substitutability is weak, however, and mainly driven by horizontal, market-seeking foreign direct investments.     

PUBLIC R&D POLICIES AND PRIVATE R&D INVESTMENT: A SURVEY OF THE EMPIRICAL EVIDENCE

The importance of R&D investment in explaining economic growth is well documented in the literature. Policies by modern governments increasingly recognise the benefits of supporting R&D investment. Government funding has, however, become an increasingly scarce resource in times of financial crisis and economic austerity. Hence, it is important that available funds are used and targeted effectively. This paper offers the first systematic review and critical discussion of what the R&D literature has to say currently about the effectiveness of major public R&D policies in increasing private R&D investment. Public policies are considered within three categories, R&D tax credits and direct subsidies, support of the university research system and the formation of high‐skilled human capital, and support of formal R&D cooperations across a variety of institutions. Crucially, the large body of more recent literature observes a shift away from the earlier findings that public subsidies often crowd‐out private R&D to finding that subsidies typically stimulate private R&D. Tax credits are also much more unanimously than previously found to have positive effects. University research, high‐skilled human capital, and R&D cooperation also typically increase private R&D. Recent work indicates that accounting for non‐linearities is one area of research that may refine existing results.     

THE IMPACT OF THE EU EMISSIONS TRADING SYSTEM ON COMPETITIVENESS AND CARBON LEAKAGE: THE ECONOMETRIC EVIDENCE

This paper carefully surveys the econometric literature that tests for competitiveness effects and related carbon leakage caused by the EU Emissions Trading System (EU ETS). The results of this literature tell us that to date there is no evidence of the EU ETS having had widespread negative or positive effects on the competitiveness of regulated firms, nor is there evidence of significant carbon leakage. However, the paper also identifies three important caveats to this general conclusion. Firstly, the evidence we have still largely refers to the first two trading periods, namely Phases I (2005–2007) and II (2008–2012). Secondly, some heterogeneity of estimated effects is observed, but patterns, notably sectoral patterns, hardly emerge. Thirdly, very little explored is whether the EU ETS has had long-term effects on the economy via investment leakage or firm dynamics. Further empirical studies investigating these long-term effects are particularly desirable.     

GOVERNMENT SIZE AND GROWTH: A SURVEY AND INTERPRETATION OF THE EVIDENCE – A COMMENT

In contrast to the commonly held view, Bergh and Henrekson (2011) conclude that a consensus has almost been reached on the thesis that government size is negatively correlated with economic growth in developed countries. They underpin this by claiming that the only study in the survey to deviate from this consensus view, i.e. Colombier (2009), was rebutted by Bergh and Öhrn (2011). This comment shows that the claim by Bergh and Henrekson (2011) cannot be upheld because the analysis by Bergh and Öhrn (2011) is based on a flawed dataset. The re‐estimation of Colombier's (2009) regressions with time‐fixed effect does not reject his main findings. Moreover, it is demonstrated that recent empirical evidence on the growth impact of government size in rich countries is not as unanimous as the survey by Bergh and Henrekson (2011) suggests. Thus, the claim that a consensus view has been reached is premature.     

APPROACHES AND METHODS FOR THE ECONOMETRIC ANALYSIS OF MARKET POWER: A SURVEY AND EMPIRICAL COMPARISON

This study discusses two widely used approaches in the New Empirical Industrial Organization (NEIO) literature and examines the strengths and weaknesses of the Production-Theoretic Approach (PTA) and the General Identification Method (GIM) for the econometric analysis of market power in agricultural and food markets. We provide a framework that may help researchers to evaluate and improve structural models of market power. Starting with the specification of the approaches in question, we compare published empirical studies of market power with respect to the choice of the applied approach, functional forms, estimation methods and derived estimates of the degree of market power. Thereafter, we use our framework to evaluate several structural models based on PTA and GIM to measure oligopsony power in the Ukrainian dairy industry. The PTA-based results suggest that the estimated parameters of oligopsony power are significantly different from zero, while GIM-based results do not indicate any evidence of oligopsony market power in the Ukrainian dairy industry. Moreover, estimations results vary substantially due to the employed estimation procedure.     

BANKING AND BORROWING IN THE EU ETS: A REVIEW OF ECONOMIC MODELLING,CURRENT PROVISIONS AND PROSPECTS FOR FUTURE DESIGN

Abstract This paper deals with the issue of banking and borrowing in the context of the European Union Emissions Trading Scheme (EU ETS) by attempting to provide a policy‐oriented unifying theoretical framework. After describing the main features of the EU ETS, the core part of the paper consists of variations of an intertemporal continuous time optimization model. Additional elements include flexibility measures currently discussed and proposed in other emissions trading systems (USA, Australia), which include the use of safety valves, minimum price auctioning or offsets from domestic or international projects.     

ETHNIC DIVERSITY,PUBLIC SPENDING,AND INDIVIDUAL SUPPORT FOR THE WELFARE STATE: A REVIEW OF THE EMPIRICAL LITERATURE

We review the empirical literature that studies the effect of ethnic diversity on public spending and on individual support for the welfare state. The survey puts a particular focus on the fast‐growing literature that uses experiments to study the effects of ethnic diversity. Many of these studies have appeared since the pioneering survey by Alesina and La Ferrara and have not been covered by a survey before.     

THE DEMAND FOR BEER,WINE AND SPIRITS: A SURVEY OF THE LITERATURE

Abstract The demand for alcohol literature is vast and much conflicting information about the nature of the demand for alcoholic beverages has been published. This paper presents a survey of the literature, and then uses the technique of meta‐regression analysis to establish insights into the nature of the demand for beer, wine and spirits. Unlike previous meta‐studies of the demand for alcoholic beverages this study adjusts for the precision of each elasticity estimate. The analysis presented suggests reported elasticity estimates will be influenced by such factors as estimation technique, data frequency and time period under consideration. With respect to time, the findings suggest that the demand for alcoholic beverages has become less inelastic since the mid‐1950s and that the income elasticity has been falling since the mid‐1960s. The analysis also found support for the idea that alcohol as a commodity group is a necessity, and that consumers respond to price discounting with inventory behaviour rather than true substitution behaviour. Little support is found for the idea that the demand for alcoholic beverages varies fundamentally across most countries, although wine may be an exception.     

THE IMPACT OF LABOR MARKET REGULATION ON EMPLOYMENT IN LOW‐INCOME COUNTRIES: A META‐ANALYSIS

Controversy over labor market policy often centers on achieving a balance between preventing worker exploitation, and avoiding loss of productivity or employment through excessive regulation. Although the literature documenting the impact of labor market regulation on employment is extensive, there is a dearth of evidence on the impact of such policies in low‐income countries (LICs). Since it is easier for workers, especially women, to slip into the informal sector in LICs, regulations are likely to have stronger impacts on formal employment in these countries (but lower impacts on unemployment). We systematically reviewed available research from countries that are, or were until recently, LICs. Most studies document that more stringent labor regulations are associated with lower formal sector employment and higher informal sector employment. We also conducted a metaregression analysis of the impact of minimum wages on formal and informal employment. After controlling for publication bias, higher minimum wages are associated with lower formal employment and a higher share of informal workers.     

POPULATION AGE STRUCTURE,SAVING, CAPITAL FLOWS AND THE REAL EXCHANGE RATE: A SURVEY OF THE LITERATURE

Abstract This paper surveys the existing literature on the effects of population age structure on saving, capital flows and the real exchange rate. We build on previous surveys of age structure and saving behaviour by including extensive discussion of international linkages, specifically the impact on capital flows and real exchange rates. We also point to unresolved issues that need to be addressed given that population aging has serious policy implications in the developed economies these days.