Macroeconomic Uncertainty in South Africa

This paper develops a new index of economic uncertainty for South Africa for the period 1990–2014. The index is constructed from three sources: (1 ) Disagreement among professional forecasters, (2 ) a count of international and local newspaper articles discussing economic uncertainty in South Africa and (3 ) mentions of uncertainty in the quarterly economic review of the South African Reserve Bank. The index shows high levels of uncertainty around the period of democratic transition in 1992–1994, the large depreciation of the currency in 2001 and the financial crisis of 2008. The uncertainty index is a leading indicator of a recession. An unanticipated increase in the index is associated with a fall in GDP, investment, industrial production and private sector employment. Contrary to evidence for the U.S.A and the U.K., uncertainty shocks are inflationary. These results are robust to controlling for global uncertainty shocks, consumer confidence and financial shocks.     

Does air pollution influence music sentiment? Measuring music sentiment by machine learning

Air pollution has imposed significant negative effects on individuals’ well-being, including citizens’ sentiment levels. To test this claim, we investigate the impact of air pollution on Chinese urbanites’ music sentiments. The analysis is based on a unique dataset of high-frequency music consumption records from a music platform in China from October 13th, 2019 to January 7th, 2020. Using machine learning algorithms, songs on this platform are divided into cheerful songs, melancholy songs and other categories, by which a music sentiment index (MSI) is generated at city-daily level. By matching MSI and daily air quality, this study finds that the MSI declines during highly polluted days, indicating that: on highly polluted days, citizens tend to enjoy melancholy songs over cheerful ones. In addition, this effect becomes more remarkable when the Air Quality Index (AQI) score is above 200, a critical point for “heavily polluted” and “severely polluted” days.     

Welfare measures and the composition of the bottom decile: The example of gender and extreme poverty in South Africa

We examine the composition of the bottom decile in South Africa using three alternative measures of socio-economic status (SES): an asset index, household income per capita and household expenditure per capita. We show that the gender composition of the bottom decile is sensitive to the measure used. We discuss possible reasons for these discrepancies, highlighting gender differences in asset ownership and location. This has implications for the use of asset indices for identifying the poorest members of society.     

A NOTE ON THE TRIMMED MEAN MEASURE OF CORE INFLATION IN SOUTH AFRICA

This paper constructs and analyses the properties of a trimmed mean inflation rate for South Africa. Based on an analysis of the distributions of the consumer price index component price changes, a measure is constructed that provides an estimator of core inflation, which may be particularly useful to policymakers in an inflation‐targeting environment. The trimmed mean estimator focuses on the price movements of individual components that have a strong bearing on the current and future trend of the headline inflation rate, allowing monetary policy to be directed at the persistent or underlying sources of inflationary pressures.     

The representation of voluntourism in search engines: The case of South Africa

This paper responds to the paucity of research on the linkages between voluntourism and digital technology and seeks to understand the online representation of the phenomenon in a developing context. In particular, the researchers investigate the so-called ‘online domain’ of voluntourism in South Africa. The researchers collected a series of web results from search engines and analysed the presence of traditional and social media websites, the most relevant presented topics, and the type of argumentation found. Results identify the context and representation of voluntourism as it transpires virtually. This will contribute to the understanding of the interplay between voluntourism and digital technology, with specific emphasis on web presence. Ultimately, results will shed light on how digitally accessible voluntourism is in South Africa and will set the basis for future investigations.     

Measuring Core Inflation in South Africa

Measures of core inflation convey critical information about an economy. They have a direct effect on the policymaking process, particularly in inflation‐targeting countries, and are utilised in forecasting and modelling exercises. In South Africa, the price indices on which inflation is based have been subject to important structural breaks following changes to the underlying basket of goods and the methodology for constructing price indices. This paper seeks to identify a consistent measure of core inflation for South Africa using trimmed means estimates, measures that exclude changes in food and energy prices, dynamic factor models, and wavelet decompositions. After considering the forecasting ability of these measures, which provide an indication of expected second‐round inflationary effects, traditional in‐sample criteria were used for further comparative purposes. The results suggest that wavelet decompositions provide a useful measure of this critical variable.     

INFLATION IN SOUTH AFRICA: A TIME‐SERIES VIEW ACROSS SECTORS USING LONG‐RANGE DEPENDENCE

In this paper I examine the time‐series evolution of the log consumer price index series in South Africa, disaggregating the data by sectors. I examine the time period 1990m1‐2008m12, i.e. focusing on the post‐apartheid period. I used methodologies based on fractional integration using parametric and semiparametric techniques. The results indicate that the (total) inflation rate in South Africa is long memory, with an order of integration in the range (0, 0.5). The same happens with most of the data disaggregated by sectors with values of d above 1 in the log prices. Evidence of I(0) inflation is obtained in some cases for “fruits and nuts”, “vegetables” and “sugar”, and evidence of mean reversion in the log prices is only obtained in the case of “fish and other seafood”.     

Common Stocks and Inflation: An Empirical Analysis of G7 and BRICS

In an attempt to understand the relationship between stock returns and inflation, this study proposes testing the Fisher effect in two groups of countries, the G7 (Canada, France, Germany, Italy, Japan, United Kingdom and the United States) group of low inflation industrialized countries and the BRICS (Brazil, Russia, India, China, and South Africa) group of relatively high inflation emerging countries, to examine the extent to which a one-to-one movement of stock returns and inflation relates to the country’s inflation rate and consumer price index. By using cointegration and vector error correction models, the results show that there is evidence of a long-run positive relationship in both G7 and BRICS countries.     

THE ROLE OF COMMODITY PRICES IN MACROECONOMIC POLICY IN SOUTH AFRICA

This paper examines whether commodity prices can be used as signal for informing macroeconomic policy in South Africa using the new approach for testing Granger causality developed by Toda and Yamamoto (1995 ). Evidence of causality from average gold price to interest rate, money, exchange rate and the consumer price index was observed. Again, evidence of causality was observed from metals price index to interest rate, money and exchange rate. The results suggest there is merit in using South Africa's average gold price and the metals price index of the International Monetary Fund as informational variables in setting monetary policy.     

Revising price history: consumer price index for Norway 1492–2018

ABSTRACT

The paper presents a new combined annual cost of living and consumer price index for Norway covering 1492–2018, indicating that Norwegian price history has to be revised. The new historical price index is constructed on a significantly richer data material, which also makes it cover a longer period of price history than the existing one. This is made possible by the compilation of quantitative data from numerous sources, mostly originating from the eighteenth, nineteenth and early twentieth centuries, with grain prices stretching back to 1492. The new combined cost of living and consumer price index is constructed by a Laspeyres approach with shifting baskets for commodities and expenditure groups.

The index makes it possible to follow annual inflation and deflation in Norway for a period of 526 years. When comparing to existing indices, the new series reveals that revisions are needed in Norwegian price history. These make the historical price development more in line with those of the neighbouring countries and more in line with the pattern of wholesale prices.     

Evaluating Threshold Effects in Consumer Sentiment

This paper assesses the usefulness of consumer sentiment in forecasting aggregate consumer spending in the United States. The literature tends to dismiss the relevance of these sentiment indexes. Without formal modeling, however, some researchers suggest that consumer sentiment could be helpful during periods of major economic or political shocks. Such periods are usually associated with high volatility of consumer sentiment, suggesting that large swings in sentiment could be useful indicators of consumption. Our work distinguishes itself from previous research in that we provide a rigorous assessment of this possibility by estimating a consumption function in which only large variations of sentiment can affect spending. Our results show that economists and forecasters should pay attention to consumer sentiment, especially in times of elevated economic or political uncertainty.     

Revisiting the Exchange Rate Pass‐Through to Inflation in Africa’s Two Largest Economies: Nigeria and South Africa

This paper revisits the exchange rate pass‐through (ERPT) to inflation in Nigeria and South Africa by incorporating structural breaks and using time series variables, namely the consumer price index, nominal effective exchange rate, gross domestic product, and crude oil price. Based on the Maki cointegration test and a flexible estimation approach of the Autoregressive Distributed Lag (ARDL) model, our empirical evidence suggests that the long‐ and short‐run ERPT to inflation is complete for Nigeria, while for South Africa it is incomplete both in the long run and short run. This result indicates that prices are stickier in South Africa compared to Nigeria. The comparison between Nigeria and South Africa confirms the role of inflation targeting and central bank credibility on the ERPT. The results divulge further that output growth in Nigeria increases inflation in the long run while it is anti‐inflationary in the short run. For South Africa, the effect of output growth is negatively insignificant. In addition, the long‐run effect of oil price is negative and significant for Nigeria, while for South Africa the short‐run effect of oil price is positive and significant. Therefore, the findings of this paper will assist the monetary authorities to achieve monetary policy objectives.     

A STOCHASTIC ESTIMATION FRAMEWORK FOR COMPONENTS OF THE SOUTH AFRICAN CONSUMER PRICE INDEX

Under inflation targeting in South Africa, it is important to monitor and forecast changes in prices, not only for aggregate measures of the consumer price index, but also its underlying sub-components. Hypotheses about sectoral transmission of policy and shocks are often more specific than hypotheses about overall transmission. This study employs a stochastic framework to estimate richly specified equilibrium correction models, four-quarters-ahead, for the 10 sub-components of the first targeted measure of the consumer price index, CPIX. The stochastic trends are estimated by the Kalman filter, and interpreted as capturing structural breaks and institutional change, a frequent cause of forecast failure. The trends suggest the design of deterministic split trends for use in recursive forecasting models, towards more accurate overall inflation forecasting. This research also has practical use for monetary policy in allowing identification of sectoral sources of inflation.     

Measuring the Financial Cycle in South Africa

We measure the financial cycle of South Africa using three different methodologies. The financial cycle is identified using credit, house prices and equity prices as indicators, and estimated using traditional turning-point analysis, frequency-based filters and an unobserved components model-based approach. We then consider the financial cycle’s main characteristics and examine its relationships with the business cycle. We confirm the presence of a financial cycle in South Africa that has a longer duration and a larger amplitude than the traditional business cycle. Developments in measures of credit and house prices are important indicators of the financial cycle, although the case for including equity prices in the measures is less certain. Periods where financial conditions are stressed are associated with peaks in the financial cycle, suggesting that the estimated financial cycle may have similar leading indicator properties to financial conditions or stress indices.     

Non-income effect of land ownership and tenure on subjective wellbeing in South Africa

Aside from the very high inequality of land ownership, South Africa is characterised by a dual land tenure system comprising of private ownership and communal land ownership. Using waves 4 and 5 of the National Income Dynamics Study longitudinal data set, a set of econometric methodologies is employed to quantify the impact of ownership and tenure on an index of subjective wellbeing (SWB) constructed from eight self-reported responses covering general life satisfaction, contrast, social capital, mental health and hope for future. Controlling for the income effect and other pertinent drivers of SWB, the study highlights the non-income impact of land ownership and tenure on the subjective wellbeing of individuals. To account for possible endogeneity and self-selection, instrumental variable and matching method-based treatment effects are computed. This paper has two main findings in relation to land tenure in South Africa: (a) land owners have on average a higher index of SWB compared to those not owning land, and (b) owning land privately, compared to owning land communally, has a positive impact on subjective wellbeing within land owners. These results are consistent and statistically significant across the various estimation strategies and provide additional motivation for expediting land reforms in South Africa.     

网络新闻、需求者关注与房价——基于时变参数向量自回归模型的研究

文章采用基于Linear-SVM的机器学习方法对百度新闻栏目57988篇的房地产市场新闻进行文本分析，构建出网络媒体净看多情绪变量和网络媒体关注度变量。并采用时变参数向量自回归模型（TVP-VAR）对媒体变量、住宅销售面积和房价之间的互动关系展开分析，得出如下结论：网媒房地产新闻的多空情绪变化基本能反映调控政策的阶段性特征。媒体报道对房地产市场冲击的响应相对稳定，时变效果不明显。媒体关注度对房地产市场的传导作用受到其构成成分和所处市场阶段的影响，其对房价的反向作用在紧缩调控放开后逐渐减小，并逐渐转为正向的提升作用，对住宅销售面积的反向作用在2015年后的市场高涨时期逐渐缩小，持续时间也在缩短。媒体情绪对房地产市场的传导作用受到调控政策和市场运行状况的叠加影响，其对房价的提升作用在2015年至2017年的房地产市场上行周期中有所扩大，对销售面积的提升作用则较为平稳。据此，文章提出应根据市场所处的阶段关注网媒发布信息的频度和情绪，加强舆情监测等建议。     

Russian Projects and Energy Cooperation in South Africa

The article discusses the problems and prospects for the development of a Russian nuclear power plants in South Africa, as well as other innovative energy projects in this country. Acute energy shortages in South Africa give Russia a unique chance to enter the African market and create a technological link between African countries and Russian innovations. An analysis of the political and economic situation in South Africa, as well as an assessment of the prospects for Russian business participation in the development of the South African energy sector were carried out using research conducted by the authors in South Africa in 2016, and interviews with Russian and South African civil servants and businesmen.     

Consumption,Credit, and Macroeconomic Policies: Theory and Evidence from the United States

Abstract

The paper examines determinants of private consumption in the USA. The empirical model includes disposable income, the University of Michigan consumer sentiment index, the interest rate, and the real effective exchange rate. Anticipated movements in these determinants are likely to affect planned consumption, while unanticipated changes determine cyclical consumption. Fluctuations in private consumption are mostly cyclical with respect to changes in disposable income and the consumers’ sentiment index. In contrast, an increase in the interest rate decreases both planned and cyclical consumption. Fiscal policy has a direct negative effect on cyclical consumption, which is not dependent on the interest rate. Monetary growth, in contrast, increases liquidity to finance both planned and cyclical private consumption.     

LIQUIDITY AND VALUATION IN EAST AFRICAN SECURITIES MARKETS

This study estimates liquidity premiums using the recently developed Liu measure within a multifactor capital asset pricing model including size premiums and a time‐varying parameter model for the East African emerging markets of Uganda, Tanzania and Kenya together with London and South Africa. The evidence suggests that while size and liquidity effects are significant in the smaller emerging markets of Uganda and Kenya, they are less important in explaining returns in South Africa and London. Costs of equity are highest in Uganda followed by Kenya, with industrial and consumer non‐cyclical sectors being lowest, and then South Africa and London.     

A review of trade trends: South Africa and the Indian Ocean Rim

Since 1990, intense diplomatic efforts have taken place to secure and negotiate trade treaties with South Africa's traditional trading partners (the European Union, in particular) and those countries in close geographic proximity. This article examines South Africa's trade links with some of its ‘non‐traditional’ trading partners, in particular the countries of the Indian Ocean Rim (IOR), in an attempt to ascertain the nature of the trade and its importance vis‐a‐vis the rest of the world. An examination of trade data for the years 1992‐5 indicates that trade with the IOR consists mainly of the mutual exchange of natural resource products and that this trade is growing much faster than South Africa ‘s trade in general. Given this trade dynamism, South Africa should pay increasing attention to international relations with these countries. South African trade with the Rim was also found to differ from trade with the rest of the world in that it comprises the mutual exchange of natural resource‐based products. This research shows that our imports and exports are positively related to the gross domestic product of our trading partners, and negatively related to their population size and distance from South Africa. Also, more open economies have absorbed more exports from South Africa. There is some ambiguity as to the role that distance plays in determining the level of imports into this country. The intensity indices computed in this article have to be viewed in the light of this research.