Economics Commons^™

Analysing User Experience Of Mobile Banking Applications In Nigeria: A Text Mining Approach, Omotosho Babatunde S.

CBN Journal of Applied Statistics (JAS)

This paper analyses textual data mined from 37,460 reviews written by mobile banking application users in Nigeria over the period November 2012 – July 2020. On a scale of 1 to 5 (5 being the best), the average user rating for the twenty-two apps included in our sample is 3.5; with the apps deployed by non-interest banks having the highest average rating of 4.0 and those by commercial banks with national authorisation having the least rating of 3.4. Results from the sentiment analysis reveal that the share of positive sentiment words (17.8%) in the corpus more than double that of …

Money And Foreign Exchange Markets Dynamics In Nigeria: A Multivariate Garch Approach, Atoi Ngozi V., Nwambeke Chinedu G.

CBN Journal of Applied Statistics (JAS)

This study examines the money market and foreign exchange market dynamics in Nigeria by estimating the dynamic correlation and volatility spillovers between the Nigeria Naira/US Dollar Bureau De Change (BDC) exchange rate and interbank call rate with data from January 2007 to August 2019. The study employs a dynamic conditional correlation form of the GARCH model (DCC-GARCH) to assess the nature of correlation, while an unrestricted bivariate BEKK-GARCH (1, 1) form of the multivariate GARCH model is utilized to investigate shocks and volatility spillover of the rates. The estimated DCC-GARCH (1, 1) reveals that interest rate and exchange rate are …

Impact Of Government Expenditure On Economic Growth In Nigeria, 1970-2019, Aluthge Chandana, Jibir Adamu, Abdu Musa

CBN Journal of Applied Statistics (JAS)

This study investigates the impact of Nigerian government expenditure (disaggregated into capital and recurrent) on economic growth using time series data for the period 1970-2019. The paper employs Autoregressive Distributed Lag (ARDL) model. To ensure robustness of results, the study accounts for structural breaks in the unit root test and the co-integration analysis. The key findings of the study are that capital expenditure has positive and significant impact on economic growth both in the short run and long run while recurrent expenditure does not have significant impact on economic growth both in the short run and long run. The study …

Selling To Reference-Dependent Consumers, Hin Shing Leung

Lingnan Theses (MPhil & PhD)

This research studies the optimal price charged by a monopoly firm when it is facing reference-dependent consumers (Kőszegi and Rabin, 2006). In the model, a consumer’s total utility from purchasing a good consists of intrinsic utility and gainloss utility, the latter of which is determined by an exogenously determined reference point. The firm’s optimal pricing depends on the level of the reference point. In particular, the firm optimally adopts a gain-type pricing strategy when the reference point is low. In this equilibrium, all consumers who purchase enjoy gain utility (gaintype consumers). When the reference point is high the firm optimally …

Productivity Loss Associated With Functional Disability In A Contemporary Small-Scale Subsistence Population, Jonathan Stieglitz, Paul L. Hooper, Benjamin C. Trumble, Hillard Kaplan, Michael D. Gurven

ESI Publications

In comparative cross-species perspective, humans experience unique physical impairments with potentially large consequences. Quantifying the burden of impairment in subsistence populations is critical for understanding selection pressures underlying strategies that minimize risk of production deficits. We examine among forager-horticulturalists whether compromised bone strength (indicated by fracture and lower bone mineral density, BMD) is associated with subsistence task cessation. We also estimate the magnitude of productivity losses associated with compromised bone strength. Fracture is associated with cessation of hunting, tree chopping, and walking long distances, but not tool manufacture. Age-specific productivity losses from hunting cessation associated with fracture and lower BMD …

Urbanization Policy And Economic Development: A Quantitative Analysis Of China's Differential Hukou Reforms, Wen-Tai Hsu, Lin Ma

Research Collection School Of Economics

The household registration system (hukou system) in China has hampered rural-urban migration by posing large migration friction. The system has been gradually relaxed in the past few decades, but the reforms have been differential in city size and by the coastal-inland divide. We find a striking contrast in the migration patterns between years 2005 and 2015; rural people tended to move more to the coastal urban region in 2005, but more to the inland urban region in 2015. We calibrate a spatial quantitative model to the world economy in both years with China being divided into the rural, coastal urban, …

Point Optimal Testing With Roots That Are Functionally Local To Unity, Anna Bykhovskaya, Peter C. B. Phillips

Research Collection School Of Economics

Limit theory for regressions involving local to unit roots (LURs) is now used extensively in time series econometric work, establishing power properties for unit root and cointegration tests, assisting the construction of uniform confidence intervals for autoregressive coefficients, and enabling the development of methods robust to departures from unit roots. The present paper shows how to generalize LUR asymptotics to cases where the localized departure from unity is a time varying function rather than a constant. Such a functional local unit root (FLUR) model has much greater generality and encompasses many cases of additional interest that appear in practical work, …

Trading Regularity And Fund Performance: Evidence In Uncertain Markets, Lin Tong, Zhe Zhang

Research Collection Lee Kong Chian School Of Business

High trading regularity funds outperform low trading regularity funds more during periods of low market returns and greater market and economic uncertainty. Their trading also has strong return predictability on stock returns during periods of greater uncertainty. They trade more around news events, and their news related trading predicts stock return stronger during periods of greater uncertainty. They also profit from liquidity provision in highly uncertain market environment. Overall our evidence suggests that high trading regularity funds trade more frequently during periods of high uncertainty when information production and processing skill is more valuable and when the demand for liquidity …

Asymptotic Properties Of Least Squares Estimator In Local To Unity Processes With Fractional Gaussian Noises, Xiaohu Wang, Weilin Xiao, Jun Yu

Research Collection School Of Economics

This paper derives asymptotic properties of the least squares estimator of the autoregressive parameter in local to unity processes with errors being fractional Gaussian noises with the Hurst parameter H. It is shown that the estimator is consistent when H ∈ (0, 1). Moreover, the rate of convergence is n when H ∈ [0.5, 1). The rate of convergence is n^2H when H ∈ (0, 0.5). Furthermore, the limit distribution of the centered least squares estimator depends on H. When H = 0.5, the limit distribution is the same as that obtained in Phillips (1987a) for the local to …

On Strategy-Proofness And The Salience Of Single-Peakedness In A Private Goods Economy, Shurojit Chatterji, Masso Jordi, Serizawa Shigehiro

Research Collection School Of Economics

We consider strategy-proof rules operating on a rich domain of preference profiles in a set up where multiple private goods have to be assigned to a set of agents with entitlements where preferences display satiation. We show that if the rule is in addition "desirable", in that it is tops-only, continuous, same-sided and individually rational with respect to the entitlements, then the preferences in the domain have to satisfy a variant of single-peakedness (referred to as smilattice single-peakedness). We also provide a converse of this main finding. It turns our that this domain coincides with the one already identified in …

Quasi-Bayesian Inference For Production Frontiers, Xiaobin Liu, Thomas Tao Yang, Yichong Zhang

Research Collection School Of Economics

We propose a quasi-Bayesian method to conduct inference for the production frontier. This approach combines multiple first-stage extreme quantile estimates by the quasi-Bayesian method to produce the point estimate and confidence interval for the production frontier. We show the asymptotic properties of the proposed estimator and the validity of the inference procedure. The finite sample performance of our method is illustrated through simulations and an empirical application.

Decomposing Duration Dependence: Skill Depreciation Vs. Statistical Discrimination, Ismail Baydur, Jianhuan Xu

Research Collection School Of Economics

This paper develops a random matching model with unobserved worker heterogeneity and learning about worker types from unemployment duration. The model features negative duration dependence that stems from unobserved heterogeneity as well as statistical discrimination and skill depreciation. We estimate our model using micro-level data from Current Population Survey (CPS) and we decompose the contribution of each channel to job finding rates by duration. We find that shutting down statistical discrimination substantially increases the job finding rates of the long-term unemployed while skill depreciation mainly affects the medium-term unemployed.

Firm Productivity And The Variety Of Inputs And Outputs: Evidence From Chinese Trade Data, Ken Onishi, Jianhuan Xu, Guang Yang

Research Collection School Of Economics

This paper studies how the trade liberalization in China changes the firm productivity. We develop a framework to estimate revenue productivity (TFPR) and real productivity (TFPQ) with multi-product firms. We find that the aggregate TFPR increases 30\% from 2002-2007 and TFPQ increases 22\%, suggesting that the observed TFPR increase is mainly driven by real productivity change rather than the markup change. We further decompose the change of productivity into three channels: (1) access to foreign inputs; (2) technology upgrade; (3) resource re-allocation within the firm. We find the most significant channel is the last one, which explains half of the …

Density Of Demand And The Consumer Benefit From Uber, Matthew H. Shapiro

Research Collection School Of Economics

Uber has attracted the attention of economists and policy makers for its innovations in the taxicab market and its potential for significant consumer welfare gains. The size of this gain depends in part on whether these innovations permit transactions previously costly or infeasible. Using New York City — the largest taxi market in the country — as its context, this paper estimates the level of any technological advantage Uber has over hail taxis in matching to consumers. I combine publicly available transportation data with data scraped from Uber and traffic cameras to estimate a model of the demand for transportation …

Causal Change Detection In Possibly Integrated Systems: Revisiting The Money-Income Relationship, Shuping Shi, Stan Hurn, Peter C. B. Phillips

Research Collection School Of Economics

This paper re-examines changes in the causal link between money and income in the United States over the past half century (1959-2014). Three methods for the data-driven discovery of change points in causal relationships are proposed, all of which can be implemented without prior detrending of the data. These methods are a forward recursive algorithm, a rolling window algorithm, and a recursive evolving algorithm all of which utilize subsample tests of Granger causality within a lagaugmented vector autoregressive framework. The limit distributions for these subsample Wald tests are provided. Bootstrap methods are developed to control family-wise size in the implementation …

The Convergence Of Water, Electricity And Gas Industries: Implications For Ppp Design And Regulation, Sock Yong Phang

Research Collection School Of Economics

In several countries that have privatised their utilities, power and water are separate industries regulated by sector-specific regulators. In a parallel development, desalination has become an important source of water supply in countries where there is a shortage of cheap and clean freshwater. Where the energy source is gas, the use of gas-fired power plants to supply electricity for desalination links the water, electricity and gas industries. We use the case of the financial collapse of an integrated water and power project to illustrate the problems that can arise from such convergence, and to draw lessons for firms, Public-Private Partnerships …

Testing For Structural Changes In Factor Models Via A Nonparametric Regression, Liangjun Su, Xia Wang

Research Collection School Of Economics

We propose a model-free test for structural changes in factor models. The basic idea is to regress the data on commonly estimated factors by local smoothing and compare the fitted values of time-varying factor loadings with those of time-invariant factor loadings estimated via principal component analysis. By construction, the test is designed to be powerful against both smooth structural changes and sudden structural breaks with a possibly unknown number of breaks and unknown break dates in the factor loadings. No restrictions on the form of alternatives or trimming of boundary regions near the beginning or end of the sample period …

Diagnostic Tests For Homoskedasticity In Spatial Cross-Sectional Or Panel Models, Badi K. Baltagi, Alain Pirotte, Zhenlin Yang

Research Collection School Of Economics

We propose an Adjusted Quasi-Score (AQS) method for constructing tests for homoskedasticity in spatial econometric models. We first obtain an AQS function by adjusting the score-type function from the given model to achieve unbiasedness, and then develop an Outer-Product-of-Martingale-Difference (OPMD) estimate of its variance. In standard problems where a genuine (quasi) score vector is available, the AQS-OPMD method leads to finite sample improved tests over the usual methods. More importantly in non-standard problems where a genuine (quasi) score is not available and the usual methods fail, the proposed AQS-OPMD method provides feasible solutions. The AQS tests are formally derived and …

The Relationship Between The Earning Of Career And Technical Industry Credentials And The Virginia Economy, Anjanette Mcfadden Hendricks

Educational Leadership & Workforce Development Theses & Dissertations

Nationally, the labor market is calling out for workers to fill the increasing number of job vacancies, but those qualified, skilled, and able to fill them are limited in supply or retiring in large numbers. As America’s key industries offer high salaries in return for candidates with the necessary skills and credentials to fill their vacancies, the skills learned and third-party industry credentials earned in secondary Career and Technical Education (CTE) programs seem to make a perfect fit for the student, employer, and the economy. However, unlike the favored US educational model of the four-year degree, the continued outdated perception …

Three Essays On International Financial And Monetary Interactions, Kemal Burak Bekircan

Dissertations

This dissertation develops three essays on safe haven currency behavior and international monetary interactions.

Essay one notes the dramatic appreciation of the U.S. dollar vis-à-vis all world currencies, along with its reversal after a year on the account of the Great Recession. This paper investigates bilateral U.S. dollar exchange rate movements during and in the aftermath of the Great Recession. I find that increasing global market uncertainty has a significant and consistent effect in strengthening of the U.S. dollar. This striking finding suggests flight-to-safety phenomenon of foreign investors, and repatriation of capital flows to the United States by the U.S. …

Covid-19 And The Us Safety Net, Robert A. Moffitt, James P. Ziliak

Economics Faculty Publications

We examine trends in employment, earnings and incomes over the last two decades in the United States, and how the safety net has responded to changing fortunes, including the shutdown of the economy in response to the COVID-19 pandemic. The US safety net is a patchwork of different programmes providing in-kind as well as cash benefits, and it had many holes prior to the pandemic. In addition, few of the programmes are designed explicitly as automatic stabilisers. We show that the safety net response to employment losses in the COVID-19 pandemic largely consists only of increased support from unemployment insurance …

Decentralization, Local Government Fiscal Independence, And Poverty: Evidence From Philippine Provinces, Tristan A. Canare

Economics Department Faculty Publications

Decentralization has become a popular development program among middle- and low-income economies worldwide. The rationale behind decentralization is the local government’s proximity to consumers gives it an information advantage over the central government on needs and preferences. However, the central government has economies of scale and has access to more resources. Using data from Philippine provinces, this paper studies the relationship between decentralization – as represented by local government fiscal independence and as measured by locally sourced revenues expressed as share of total revenue – and poverty incidence. It finds evidence that fiscal independence is associated with lower poverty, but …

Deliberation Enhances The Confirmation Bias In Politics, David L. Dickinson

ESI Publications

The confirmation bias, unlike other decision biases, has been shown both empirically and in theory to be enhanced with deliberation. This suggests that limited attention, reduced deliberation, or limited available cognitive resources may moderate this bias. We aimed to test this hypothesis using a validated confirmation bias task in conjunction with a protocol that randomly assigned individuals to one week of at-home sleep restriction (SR) or well-rested (WR) sleep levels. We also used a measure of cognitive reflection as an additional proxy for deliberation in our analysis. We tested the hypotheses that the confirmation bias would be stronger for WR …

Nebraska Monthly Economic Indicators: November 25, 2020, Eric Thompson

Leading Economic Indicator Reports

The LEI-N rose during October 2020, by 1.83%. The rising indicator confirms that the Nebraska economy should continue to expand over the next 6 months. Five of the six components of the leading indicator improved during October. Manufacturing hours-worked rebounded in October after declining over the previous 3 months. Business expectations also were positive, with respondents to the October Survey of Nebraska Business reporting plans to increase employment over the next 6 months. The value of the U.S. dollar also declined, which will improve competitive conditions for Nebraska businesses that export. Building permits for single-family homes and airline passenger enplanements …

5 Big Ideas In Inequality: Good Jobs - V, Timothy J. Bartik

Presentations

No abstract provided.

Broadening Place-Based Jobs Policies: How To Both Target Job Creation And Broaden Its Reach, Timothy J. Bartik

Upjohn Institute Policy Papers

Many places in the United States are distressed in that they have low “employment rates” (employment to population ratios). In my recent report for the Brookings Metro Policy program (Bartik 2020b), I proposed helping the most distressed local labor markets, comprising 15 percent of the U.S. population, by a federal block grant of $11 billion annually to provide public services to create local jobs. The present policy paper outlines how this block grant can be broadened, while remaining targeted. The block grant is broadened by adding $3 billion for more moderately distressed local labor markets, comprising an additional 15 percent …

Employment Opportunities For New Academic Librarians: Assessing The Entry Level Jobs, Sudeshna Karmakar

Library Philosophy and Practice (e-journal)

Finding a position in a library can be challenging for recent Library and Information Science (LIS) graduates. While LIS students are often encouraged to seek out experience, network, and improve upon their technology skills in hopes of better improving their odds in the job market, little research exists to support this anecdotal advice. This study quantifies the academic and work experiences of recent LIS graduates in order to provide a better understanding of what factors most significantly influence the outcome of their academic library job searches. The survey results demonstrate that the job outlook is most positive for candidates, who …

Does Bitcoin Use Affect Crime Rates?, Kevin Keane

The Corinthian

Bitcoin is the most widely used cryptocurrency in the world because of its decentralized network that completes user-to-user transactions, eliminating the need for intermediaries. During 2017, the volume of Bitcoin transactions totaled $94.3 trillion. Bitcoin transactions are recorded in a public database called the blockchain. Although the blockchain can keep track of how many transactions there are, it can’t identify the people involved in transactions. The lack of identity increases the anonymity of Bitcoin transactions, making it less detectable when used for crime. Using the Uniform Crime Reporting’s state-level crime rate data and blockchain’s Bitcoin transaction information, I estimate the …

Labor Gone Digital (Digifacket)! Experiences From Creating A Web Archive For Swedish Trade Unions, Jenny Jansson, Katrin Uba, Jaanus Karo

Journal of Contemporary Archival Studies

The Internet has become an increasingly important forum for societal activism, as event mobilization, member organization, and some actions have moved online. These new types of activities, often facilitated by diverse social media platforms such as Facebook, Twitter, and Instagram, form an increasingly important part of contemporary social movements’ and organizations’ communication, work, and expression. This rapid digitalization and the increase of online activities have created a dilemma for social movement archives and researchers: Born-digital material is necessary to understand our contemporary movements, yet the materials generated and available on the Internet are rarely systematically archived. To help find solutions …

Market Trends In Food Consumption Expenditures Away From Home Prior To The Covid-19 Pandemic, Rebecca Weir

Undergraduate Economic Review

U.S. food consumption expenditures away from home increased from 19 percent of total food expenditures in 1955 to 48 percent in 2015. Simultaneously, female participation in the labor force grew by 52.7 million women from 35 to 57 percent, signifying increased opportunity cost for women to prepare meals at home. This research uses an ordinary least squares regression to examine socioeconomic factors influencing the rise in U.S. food consumption expenditures away from home in 2018. Results inform food production and service industries’ marketing strategies, and set the stage for whether a new pattern emerges in response to the COVID-19 pandemic.