Econometrics Commons^™

The Problem With The Mode Of External Debt Servicing: The Case Of Nigeria, Shehu Tijjani Muhammed

Bullion

This study empirically tested the hypothesis that external debt servicing leads to debt accumulation using Nigeria as case study. The method employed combines logic and debt stock variation analysis. Results indicate that Nigeria has served interest on its external debt only to see its external debt stock increasing confirming the hypothesis. A reform is needed to enable the country retain the domestic income lost to international speculative capital to boost government revenue. A sovereign agency to intermediate between the indebted residents, exporters, and the banking system can be created to solve the problem.

The Conditional Nature Of The Value Premium: Interaction And Cross-Sectional Evidence Across Market Regimes, Samuel L. Klein

Honors Thesis

This thesis examines why value-based investment strategies generate strong returns in some environments yet weaken or collapse in others. Regressions test whether the performance of the book-to-market ratio depends on the investor’s perception of financial health as defined by F-Score and accruals. Across additive regressions, interaction models, cross-sectionals, and heatmap visualizations, a consistent mechanism emerges. The book-to-market effect is strongest when financial information is neither highly reliable nor severely distressed. In these “moderate-quality” environments, investors struggle to fully distinguish the transitory components of earnings from their persistent counterparts. This makes valuation ratios particularly influential. Accrual intensity and financial strength jointly …

Effects Of External Debt On Inflation In The West African Monetary Zone (Wamz), Collins Anosike

Journal of Global Awareness

This research examined the effect of external public debt on inflation in the West African Monetary Zone (WAMZ) using annual data from 1960 to 2022. The study selected the six member countries of WAMZ, namely: Gambia, Guinea, Nigeria, Sierra Leone, Liberia, and Ghana, to examine their economic well-being, growth performance, external debt, and inflation over a 63-year period. This study is unique because it examines three periods, namely: pre-WAMZ (1960 to 2000); during WAMZ (2001 to 2022); and the entire period (1960 to 2022), extends previous studies by using updated data, and then shows the long-run positive effect of external …

Housing Burden And Insurance Expenditures, Melanie M. Lytell

Honors Capstones

Housing costs shape the way families spend on protection and security. This study looks at how the share of income devoted to housing, the housing burden, influences household spending on four types of insurance: vehicle, life, personal, and health. Using data from nearly 92,000 households and regression models that account for state differences, I find that even small increases in housing burden shift insurance choices in meaningful ways. A one‑percentage‑point rise in housing burden is linked to a 2.1% increase in vehicle insurance spending and a 0.5% increase in life insurance, but a 0.7% decrease in personal insurance and a …

Contests With Ambiguous Prizes, Cary Deck, Aidan Hathaway, Emma Kate Henry, Tigran Melkonyan, Samuel Redinger

ESI Working Papers

This paper examines behavior in contests where the prize value is ambiguous. We develop a theoretical model of bidding in a Tullock contest with an ambiguous prize where contestants account for the ambiguity attitude of their rival. Ambiguity affects optimal behavior via two countervailing channels - a direct effect arising from contestants’ ambiguity about the value of the prize and an indirect effect corresponding to the effect of ambiguity on the opponent’s behavior. Using a controlled laboratory experiment, we elicit individual risk and ambiguity attitudes and compare predicted and observed behavior in contests with an ambiguous prize, a risky prize …

An Empirical Investigation Of The Effects Of Gunshot Detection Technology In Detroit, Joe Davis

All Graduate Reports and Creative Projects, Fall 2023 to Present

This paper evaluates the impact of acoustic gunshot detection technology (GDT) on crime and policing outcomes in Detroit, Michigan. Leveraging the implementation of ShotSpotter across high-crime neighborhoods, I analyze outcomes including crime rates, emergency calls, police response times, and case clearance. My findings indicate that ShotSpotter installation is associated with a 6% reduction in violent crime but a modest increase in nonviolent crime. The technology also produces a large increase in the reporting of gunfire incidents—over 300% more gunshot-related calls for service—yet police respond 7% slower to ShotSpotter alerts than to citizen-reported gunshots. Consistent with prior research, I find no …

The Moderating Effect Of Income Inequality On The Income–Emissions Relationship In G20 Countries, Zahra Rizky Fadilah, Budiasih Budiasih

Economics and Finance in Indonesia

This study analyzes the moderating effect of income inequality on the income–emissions relationship in the environmental Kuznets curve (EKC) framework. Findings indicate that the relationship is inverted U-shaped in middle-income G20 countries, but monotonically increasing in high-income G20 countries. Interestingly, income inequality moderates this relationship only in the latter group. These findings suggest that middle-income G20 countries should focus on raising income per capita to mitigate environmental degradation, while their high-income counterparts need to prioritize reducing income inequality to effectively decouple income from emissions.

The Bandwagon Model, Dean A. Williams

All Dissertations

Professional sports teams are in the entertainment market where owners of teams invest in players with the hopes of converting their talents into wins, and in turn, added revenues for their team. To gain an understanding of the incentives that shape these team talent investment decisions, prior economists have created theoretical models of professional sports leagues that give predictions regarding the cost to acquire talent, and the winning percentage of teams from different market sizes. These models are then used to show how team talent investment decisions change once professional sports leagues implement policies such as first-year player drafts, salary …

Strategic Interactions And Gender Cues: Evidence From Social Preference Games, Hernán Bejarano, Matias Busso, Juan Francisco Santos

ESI Working Papers

This paper studies trust, reciprocity, and bargaining using a large-scale online experiment conducted in six Latin American countries. Participants played trust and ultimatum games under randomly assigned conditions in which the gender of their counterpart was either disclosed or withheld. On average, disclosing counterpart gender does not yield statistically detectable effects in either game. However, statistically significant differences emerge by participants' own gender: on average men exhibit higher levels of trust, reciprocity, and generosity in bargaining than women. When disaggregating by participant-counterpart gender pairings, point estimates differ in sign across groups but are generally imprecisely estimated, and differences between interacting …

Trade Dependency And Resilience: An Analysis Of Egypt’S Wheat Import Dynamics During The Russia-Ukraine War, Maha Elhini, Jomana M. Eiisa, Rasha Hammam

Economics

Purpose

Provided that Egypt is the world’s largest wheat importer, the conflict between its primary suppliers presents significant challenges to its trade stability and food security. This paper aims to investigate the impacts of the Russia–Ukraine (RU) war on Egypt’s trade dynamics, with a particular focus on wheat imports over the period 1995–2023.

Design/methodology/approach

The study uses the Fully Modified Ordinary Least Squares (FMOLS) model to estimate the relationship between macroeconomic variables and Egypt’s trade performance, as well as agricultural determinants and wheat import dynamics.

Findings

The empirical results show that Egypt’s GDP growth rate and its exchange rate have …

Investigating The Relationship Between Noun Classes And Plant Folk Taxonomy In Chasu Language Of Kilimanjaro Region In Tanzania, Peter Rabson Mziray

Journal of Humanities and Social Sciences

The current study investigates the relationship between noun classes and plant folk taxonomy in Chasu (G 22). The study focuses on two objectives: the first objective is to describe the plant folk taxonomy in Chasu and the second objective is to determine the relationship between noun classes and plant folk taxonomy in Chasu. Data were collected from rural villages in Same and Mwanga districts by using free listing, field interviews (jungle-walk-and-identify), and written texts containing Chasu plant names. The findings reveal that Chasu folk taxonomy reflects different ethnobotanical categories; including a unique beginner which is mmea/mimea ‘plant(s)’, and three life …

Dictators And Lying Dictators: An Experimental Investigation Of Preference Based-Group Biases In Chinese And American Interactions, Aaron S. Berman, Saika Cer Askin, Shapeng Jiang, David Porter, Jason Shachat

ESI Working Papers

This study examines preference-based behavioral biases in social interactions between two distinct communities: students from Chapman University in the United States and Wuhan University in China. Using controlled experiments, participants interacted within or across communities in Dictator games. Two versions of the Dictator game were used: one where decisions were observable by both the experimenter and the recipient, and another where allocators could misreport outcomes with plausible deniability. Results revealed unexpected patterns, including similar allocation distributions across communities in the transparent task, and differing behaviors in the misreporting task, with Chapman allocators being more generous to out-group members and Wuhan …

Gmm Estimation With Brownian Kernels Applied To Income Inequality Measurement, Jin Seo Cho, Peter C. B. Phillips

Research Collection School Of Economics

In GMM estimation, it is well known that if the moment dimension grows with the sample size, the asymptotics of GMM differ from the standard finite dimensional case. The present work examines the asymptotic properties of infinite dimensional GMM estimation when the weight matrix is formed by inverting Brownian motion or Brownian bridge covariance kernels. These kernels arise in econometric work such as minimum Cramér–von Mises distance estimation when testing distributional specification. The properties of GMM estimation are studied under different environments where the moment conditions converge to a smooth Gaussian or non-differentiable Gaussian process. Conditions are also developed for …

Poking Holes And Adding Points In Dictator Games, James C. Cox, Cary Deck, Laura Razzolini, Vjollca Sadiraj

ESI Working Papers

Deviations from choices predicted by self-regarding preferences have regularly been observed in standard dictator games. Such behavior is not inconsistent with conventional preference theory or revealed preference theory, which accommodate other-regarding preferences. By contrast, experiments in which giving nothing is not the least generous feasible act produce data that is inconsistent with conventional preference theory including social preference models and suggest the possible relevance of reference point models. Two such models are the reference-dependent theory of riskless choice with loss aversion and choice monotonicity in moral reference points. Our experiment includes novel treatments designed to challenge both theoretical models of …

Competition Through Entry Fees Between Auctions For Differentiated Objects, Massimiliano Landi, Domenico Menicucci, Domenico Colucci

Research Collection School Of Economics

This paper considers two competing auctions with objects differentiated according to the random utility framework introduced in Perloff and Salop (1985): bidders privately observe their values for the two objects, and values are ex ante i.i.d. across objects and across bidders. For the case of uniform distribution of values, we show that competition under entry fees is less intense than competition under reserve prices in the sense that sellers are better off, and bidders are worse off when competition takes place with entry fees rather than under reserve prices. The key difference between the two settings is that undercutting under …

Final Offer Arbitration With Asymmetric Evidence, Yongjoon Kim, Afia Promi, Jiatong Xue, Cary Deck

ESI Working Papers

As disputants increasingly rely upon arbitration it is critical to understand outcomes that are likely to arise from mechanisms like final offer arbitration. While a sizable experimental literature investigating strategic behavior in final offer arbitration exists, that work has overwhelmingly focused on situations where the arbitrator’s beliefs about the appropriate resolution are symmetric and uninfluenced by the disputants’ cases. This paper considers a setting where the arbitrator’s beliefs depend on the strength of each disputant’s case. We find disputant responses to changes in the relative strength of their case generally follow comparative statics predictions. Further, we find that final offers …

Coordination In Time, Lars Boerner, Erik O. Kimbrough, Mouli Modak

ESI Working Papers

We study how well people are able to solve pure coordination problems in continuous time. Subjects decide whether and when to pay a cost to go to market with their goods and earn money only if another person shows up at the same time. We show that coordination failure is common in a baseline, and we introduce treatments that feature public coordination devices (meant to mimic clocks) and assess the extent to which coordination improves when such devices are provided via different institutions. A publicly provided device outperforms a variety of privately provided alternatives. Our evidence suggests this is because …

The Effect Of Renewable Energy Consumption, Economic Growth, And Energy Use On Co₂ Emissions In Indonesia: An Ardl Analysis, Raihan Ahmad Mustofa, Mariam Kamila, Rininta Nurrachmi, Syifa Shafnastiara

Jurnal Kebijakan Ekonomi

Abstract This study examines the dynamic relationship between renewable energy consumption, total energy use, economic growth, and CO₂ emissions in Indonesia over the period 1990–2021 using an ARDL approach. The results show a stable long-run relationship with quick adjustment after shocks. In the long run, energy consumption is associated with higher CO₂ emissions, reflecting the continued dominance of fossil fuels. Renewable energy helps reduce emissions in the short term, but its long-term impact remains statistically insignificant. GDP does not show a significant effect, suggesting that meaningful decarbonization will require a more intensive shift in the energy mix.

Keywords: ARDL, renewable …

Testing Fractional Inflation Persistence In The West African Monetary Zone, Afees A. Salisu, Nuruddeen Usman, Godday Uwawunkonye Ebuh

Bulletin of Monetary Economics and Banking

Understanding inflation persistence is of utmost significance for monetary policymakers in an era of heightened global economic interdependence and increased susceptibility to external shocks. Thus, this study examines the dynamics of inflation within the West African Monetary Zone (WAMZ), employing both conventional and innovative econometric methods, notably Fractional integration and Fractionally Cointegrated Vector AutoRegressive (FCVAR) models. Our analysis reveals a compelling paradox in the persistence of inflation. Conventional methodologies suggest a robust inertia with high persistence levels nearing unity. Conversely, Fractional Integration paints a more intricate portrait, indicating a dynamic, less persistent behavior with persistence values notably below 0.5. Crucially, …

Weak Identification Of Long Memory With Implications For Volatility Modeling;, Jia Li, Peter C. B. Phillips, Shuping Shi, Jun Yu

Research Collection School Of Economics

This paper explores implications of weak identification in common ‘long memory’ and recent ‘rough’ approaches to modeling volatility dynamics of financial assets. We unveil an asymptotic near-observational equivalence between a long memory model with weak autoregressive dynamics and a rough model with a near-unit autoregressive root. Standard methods struggle to distinguish them, and conventional asymptotics are invalid. We propose an identification-robust approach to construct confidence sets that reveal the uncertainty and aid inference. Empirical studies based on realized volatility and trading volume often fail to statistically reject either model, thereby providing evidence of their potential coexistence.

Minimum Resale Price Maintenance In The Absence Of Point-Of-Sale Service, Agency Or Free-Rider Problems, Michael R. Baye, Dan Kovenock, Casper De Vries

ESI Working Papers

We show that MRPM can increase manufacturer profits and total output even in the ab- sence of traditional justifications based on point-of-sale services, retailer effort, or free-riding. The key insight is that MRPM mitigates channel conflict by altering how retailers balance extracting surplus from loyal customers and competing for price-sensitive shoppers. When a manufacturer optimally chooses a wholesale price and MRPM policy, this can intensify com- petition and create systematic distributional effects: prices fall for loyal consumers but rise for shoppers, and the profits of smaller, shopper-dependent retailers decline. We characterize the conditions under which MRPM raises output, benefits a …

Building Reputation: State-Sponsored Rebellions And Transnational Identities, Marion Mercier, Arthur Silve, Benjamin Tremblay-Auger

ESI Working Papers

States sometimes back rebellions abroad to signal resolve. We study this reputation-building logic in international relations, focusing on co-ethnic links between countries as an objective source of variation in a state’s incentives to demonstrate resolve. We formally derive two interconnected predictions from the mechanism: (a) a state is more likely to endorse the uprising of a foreign group when facing a larger audience, resulting in (b) greater political inclusion for the group. We build a comprehensive panel dataset of co-ethnic rebellion sponsorship, and find evidence consistent with both predictions.

Tokenization And Interconnectedness: A Numerical Exploration, Alessandro Gioffré, Gabriele Camera

ESI Working Papers

Tokenization of assets has multiple implications for the operation of financial markets, among which are mitigating trade frictions and improving the interconnectedness of financial firms. This feature—if not properly managed—can propagate shocks more widely as compared to a traditional system. We study this double-edged aspect of tokenization using a matching model that makes explicit how firms are exposed to counterparty risk. We propose a way to manage this increased risk, through Financial Transactions Limiters, which exploit the technical advantages of tokenization in monitoring financial transactions of individual firms. We numerically analyze the possible social welfare consequences of tokenization, in …

Comparative Evaluation Of Estimation Techniques For Purchasing Power Parity In African Countries Using The Country-Product-Dummy Regression Framework, Rokibat Adeola Tijani, Taiwo Abideen Lasisi, Dahud Kehinde Shangodoyin, Olasunkanmi James Oladapo

Al-Bahir

Purchasing Power Parity (PPP) is a popular macroeconomic analysis metric used to compare economic productivity and standards of living between countries. This study examines the estimation of PPP within the International Comparison Program (ICP) at Basic Heading (BH) level stage and leverages on the data from the 2011 ICP round. Focusing on five BHs out of 12 BHs across 50 Africa countries, to empirically evaluate the validity of the classical Ordinary Least Square (OLS) assumptions in the estimation of Country Product Dummy (CPD) regressions. Given the widespread use of OLS for BH level PPP computation, a rigorous examination of these …

Multidimensional Arbitration, Cary Deck, Paul Pecorino, Brian R. Powers

ESI Working Papers

Most analyses of arbitration consider disputes over a single dimensional issue; however, in many situations more than one issue can be in dispute. In a labor context, the parties may disagree on the hourly wage, number of paid holidays, and fringe benefits as well as other conditions of employment. In addition to conventional arbitration (CA), two variants of multidimensional final-offer arbitration (FOA) are employed in practice. Under one version of FOA, the arbitrator must pick the entire package submitted by one of the disputants. Under the other version of FOA, the arbitrator can select elements from each disputant’s final offer …

Analisis Dampak Kebijakan Insentif Fiskal Terhadap Tingkat Komponen Dalam Negeri (Tkdn) Industri Manufaktur Di Indonesia, Muhammad Muhammad, Riyanto Riyanto

Jurnal Kebijakan Ekonomi

Over the last decade, the manufacturing sector's contribution to Indonesia's economy has declined. In 2010, it was 29.10% of GDP, but by 2022, it had dropped to 19.14%. Employment in the sector also fell, from 14.91% of the workforce in 2010 to 13.80% in 2022. To reverse this trend, the government introduced a policy to boost the Domestic Component Level (DCL) in manufacturing. By offering fiscal incentives to industries meeting certain DCL targets, the government aims to drive economic growth and job creation. A study using BPS data from 2008-2019 shows that this policy raised DCL by 23.5%.

The Basics Of The Mundlak And Chamberlain Projections, Badi H. Baltagi, Tom Wansbeek

Center for Policy Research

One of the best-known results in panel data econometrics, due to Mundlak (1978), is the equality of the random-effects and fixed-effects estimators when the individual effects are correlated with the means over time of the regressors. Chamberlain (1980) showed that the same result holds when the individual effects are correlated with the regressors for all moments in time separately. In this chapter, we review basic elements of the Mundlak and Chamberlain projections. We emphasize the simplicity that is often obtained when the model is transformed into the within and between-model, following Arellano (1993). Topics that we discuss include the augmented …

Estimation Of Serially Correlated Error Components Models Using Whittle’S Approximate Maximum Likelihood Method, Badi H. Baltagi, Georges Bresson, Jean-Michel Etienne

Center for Policy Research

This chapter studies the estimation of error components models with serial correlation of the 𝐴𝑅𝑀𝐴(𝑝, 𝑞) type using Whittle’s (Whittle, 1953) approximate maximum likelihood method. This is done for the one-way and two-way error components panel data model. Monte Carlo simulations are performed that investigate the small sample performance of this method.

Max-Share Misidentification, Liyu Dou, Paul Ho, Thomas Lubik

Research Collection School Of Economics

While max-share identiffcation has become increasingly popular in a wide range of applications, we show that its validity requires necessary and suffffcient conditions that are rarely satisffed in practice—the target variable’s response to the target shock must be (i) orthogonal to its responses to untargeted shocks and (ii) larger than combinations of those responses. Imposing additional restrictions on the target shock weakens but does not fully eliminate these conditions. We show that in practice, the weight max-share places on an identiffed untargeted shock can be obtained by projecting the response to that shock on the max-share response. We also theoretically …

Speculative Bubbles In The Recent Ai Boom: Nasdaq And The Magnificent Seven, Rerotlhe B. Basele, Peter C. B. Phillips, Shuping Shi

Research Collection School Of Economics

The recent artificial intelligence (AI) boom covers a period of rapid innovation and wide adoption of AI intelligence technologies across diverse industries. These developments have fueled an unprecedented frenzy in the Nasdaq, with AI-focused companies experiencing soaring stock prices that raise concerns about speculative bubbles and real-economy consequences. Against this background, this study investigates the formation of speculative bubbles in the Nasdaq stock market with a specific focus on the so-called Magnificent Seven (Mag-7) individual stocks during the AI boom, spanning the period from January 2017 to January 2025. We apply the real-time PSY bubble detection methodology of Phillips et …