Stigler, G. (1968) The Economics of Information. Journal of Political Economy, 69, 213-225.
 Nelson, P. (1970) Information and Consumer Behavior. Journal of Political Economy, 78, 311-329.
 Hanson, R. (1999) Decision Markets. IEEE Intelligent Systems, 14, 16-19.
 Homans, G.C. (1958) Social Behavior as Exchange. American Journal of Sociology, 63, 597-606.
 Kirmani, A. and Rao, A.R. (2000) No Pain, No Gain: A Critical Review of the Literature on Signaling Unobservable Product Quality. Journal of Marketing, 64, 66-79.
 Rees, A. (1966) Information Networks in Labor Markets. American Economic Review, 56, 559-566.
 Anderson, D.A. and Hamori, S. (2000) A Theory of Quality Signaling in the Marriage Market. Japan and the World Economy, 12, 229-242.
 Bagnoli, M. and Bergstom, T.C. (1973) Courtship as a Waiting Game. Journal of Political Economy, 101, 185-202.
 Becker, G.S. (1973) A Theory of Marriage: Part I. Journal of Political Economy, 81, 813-846.
 Becker, G.S. (1973) A Theory of Marriage: Part II. Journal of Political Economy, 82, 511-526.
 Becker, G.S. (1981) A Treatise on the Family. Harvard University Press, Cambridge.
 Zahavi, A. (1975) Mate Selection—A Selection for a Handicap. Journal of Theoretical Biology, 53, 205-214.
 Griffin, D.R. (1958) Listening in the Dark. Yale University Press, New Haven.
 Fenton, et al. (1995) Signal Strength, Timing, and Self-Deafening: The Evolution of Echolocation in Bats. Paleobiology, 21, 229-242.
 (2007). Experience and Credence Goods—An Introduction. In: Strategies in Markets for Experience and Credence Goods, Deutscher Universitäts-Verlag, Wiesbaden, 1-5.
 Eliashberg, J. and Robertson, T.S. (1988) New Product Pre-Announcing Behavior: A Market Signaling Study. Journal of Marketing Research, 25, 282.
 Gambetta, D. (2009) Signaling. In: HedstrÖm, P. and Bearman, P., Eds., The Oxford Handbook of Analytical Sociology, Oxford University Press, Oxford, 168-194.
 Cheshire, C., Gerbasi, A. and Cook, K.S. (2010) Trust and Transitions in Modes of Exchange. Social Psychology Quarterly, 73, 176-195.
 Przepiorka, W. and Berger, J. (2017) Signaling Theory Evolving: Signals and Signs of Trustworthiness in Social Exchange. In: Jann, B. and Przepiorka, W., Eds., Social Dilemmas, Institutions, and the Evolution of Cooperation, De Gruyter Oldenbourg, Berlin, 1-26.
 Martín, S.S. and Camarero, C. (2005) Consumer Reactions to Firm Signals in Asymmetric Relationships. Journal of Service Research, 8, 79-97.
 Pitchik, C. and Schotter, A. (1993) Information Transmission in Regu-lated Markets. Canadian Journal of Economics, 26, 815-829.
 Akerlof, G.A. (1970) The Market for “Lemons”: Quality Uncertainty and the Market Mechanism. The Quarterly Journal of Economics, 84, 488.
 Spence, A.M. (1973) Job Market Signaling, Quarterly Journal of Economics, 87, 355-374.
 Doria, M. (2010) Factors Influencing Public Perception of Drinking Water Quality. Water Policy, 12, 1-19.
 Agensi, A., Tibyangye, J., Tamale, A., Agwu, E. and Amongi, C. (2019) Contamination Potentials of Household Water Handling and Storage Practices in Kirundo Subcounty, Kisoro District, Uganda. Journal of Environmental and Public Health, 2019, Article ID: 7932193.
 Gelt, J. (1996) Consumers Increasingly Use Bottled Water, Home Water Treatment Systems to Avoid Direct Tap Water. Arroyo, 9, 1-11.
 Chaidez, C., Rusin, P., Naranjo, J. and Gerba, C.P. (1999) Microbiological Quality of Water Vending Machines. International Journal of Environmental Health Research, 9, 197-206.
 Lund, J., Medellin-Azuara, J., Durand, J. and Stone, K. (2018) Lessons from California’s 2012-2016 Drought. Journal of Water Resources Planning and Management, 144, Article ID: 04018067.
 Zeraebruk, K.N., Mayabi, A.O., Gathenya, J.M. and Tsige, Z. (2014) Assessment of Water Supply Services and Operational Performance of Asmara Water Supply Department (AWSD) for Development of Decision Support Tools. Environment and Natural Resources Research, 4, 208-222.
 Brown, C. and Heller, L. (2017) Affordability in the Provision of Water and Sanitation Services: Evolving Strategies and Imperatives to Realize Human Rights. International Journal of Water Governance, 5, 19-38.
 Gonzales, P. and Ajami, N.K. (2019) Goal-Based Water Trading Expands and Diversifies Supplies for Enhanced Resilience. Nature Sustainability, 2, 138-147.
 Liddle, E.S., Mager, S.M. and Nel, E.L. (2014) The Importance of Community-Based Informal Water Supply Systems in the Developing World and the Need for Formal Sector Support. The Geographical Journal, 182, 85-96.
 Dakyaga, F., Kyessi, A.G. and Msami, J.M. (2018) Water Access Today and Tomorrow: Domestic Water Sustainability under Informal Water Supply Markets in Dar es Salaam, Tanzania. Journal of Sustainable Development, 11, 120-124.
 Tabotabo-Picardal, et al. (2018) Drinking Water Quality from Water Vending Machines in Selected Public Schools in Cebu City, Philippines. International Journal on Environmental Science and Sustainable Development, 3, 1-9.
 Venkatachalam, L. (2014) Informal Water Markets and Willingness to Pay for Water: A Case Study of the Urban Poor in Chennai City, India. International Journal of Water Resources Development, 31, 134-145.
 Meran, G., Siehlow, M. and von Hirschhausen, C. (2018) Pipes, Taps and Vendors: Managing and Regulating the Unconnected Water Market, Beitrüge zur Jahrestagung des Vereins für Socialpolitik 2018: Digitale Wirtschaft—Session: Environmental Economics IV, No. D06-V1, ZBW—Leibniz-Informationszentrum Wirtschaft, Kiel, Hamburg.
 Takala, A. and Heino, O. (2017) Weak Signals and Wild Cards in Water and Sanitation Services—Exploring an Approach for Water Utilities. European Journal of Futures Research, 5, 4.
 Hirshleifer, J. (1971) The Private and Social Value of Information and the Reward for Inventive Activity. American Economic Review, 61, 561-574.
 Fosdick, R.B. (1916) Passing of the Bertillon System of Identification. Journal of American Institute of Criminal Law and. Criminology, 6, 363-369.
 Farebrother, R. and Champkin, J. (2014) Alphonse Bertillon and the Measure of Man: More Expert than Sherlock Holmes. Significance, 11, 36-39.
 Buda, et al. (2018) Bertillonage and Criminal Anthropology in Bucharest, 1893. Romanian Journal of Legal Medicine, 26, 209-211.
 Davies, J., German, D.M., Godfrey, M.W. and Hindle, A. (2011) Software Bertillonage. Proceeding of the 8th Working Conference on Mining Software Repositories, Waikiki, 21-22 May 2011, 183-192.
 Ainuson, K.G. (2010) Urban Water Politics and Water Security in Disadvantaged Urban Communities in Ghana. African Studies Quarterly, 11, 59-82.
 Jin, G.Z. and Leslie, P. (2003) The Effect of Information on Product Quality: Evidence from Restaurant Hygiene Grade Cards. The Quarterly Journal of Economics, 118, 409-451.
 Dai, W. and Luca, M. (2018) Digitizing Disclosure: The Case of Restaurant Hygiene Scores. Harvard Business School Working Paper, No. 18-088.
 Roberts, A. (2006) Blacked Out: Government Secrecy in the Information Age. Cambridge University Press, Cambridge.
 Fung, A., Graham, M. and Weil, D. (2007) Full Disclosure: The Perils and Promise of Transparency. Cambridge University Press, Cambridge.
 Milgrom, P.R. (1981) Good News and Bad News: Representation Theorems and Applications. Bell Journal of Economics, 12, 380-391.
 Steele, S., Ruskin, G., McKee, M. and Stuckler, D. (2019) “Always Read the Small Print”: A Case Study of Commercial Research Funding, Disclosure and Agreements with Coca-Cola. Journal of Public Health Policy, 40, 273-285.
 Matthews, S. and Postlewaite, A. (1985) Quality Testing and Disclosure. The RAND Journal of Economics, 16, 328-340.
 Fishman, M.J. and Hagerty, K.M. (2003) Mandatory versus Voluntary Disclosure in Markets with Informed and Uninformed Customers. Journal of Law, Economics, and Organization, 19, 45-63.
 Dranove, D. and Jin, G.Z. (2010) Quality Disclosure and Certification: Theory and Practice. Journal of Economic Literature, 48, 935-963.
 Bacharach, M. and Gambetta, D. (2003) Trust in Signs. In: Cook, K.S., Ed., Trust in Society, Russell Sage, New York, 3-39.
 Bar-Gill, O. and Porat, A. (2017) Disclosure Rules in Contract Law. Coase-Sandor Working Paper Series in Law and Economics. 829.
 Viscusi, W.K. (1978) A Note on “Lemons” Markets with Quality Certification. The Bell Journal of Economics, 9, 277-279.
 Grossman, S.J. and Hart, O.D. (1980) Disclosure Laws and Takeover Bids. Journal of Finance, 35, 323-334.
 Connelly, B.L., Certo, S.T., Ireland, R.D. and Reutzel, C.R. (2010) Signaling Theory: A Review and Assessment. Journal of Management, 37, 39-67.
 Baier, A. (1994) Moral Prejudices. Harvard University Press, Cam-bridge.
 Aleichem, S. (1969) The Adventures of Menahem-Mendl, Trans. Tamara Kahana. G. P. Putnam’s Sons, New York.
 Newman, S. and Hutton-Yeo, A. (2008) Intergenerational Learning and the Contributions of Older People. Ageing Horizons, 8, 31-39.
 Brenner, R. (1979) Human Capital and Changing Circumstances. The Workshop in Applications of Economics, Chicago, IL, 3-5 May 1979.
 Biernaskie, J.M., Grafen, A. and Perry, J.C. (2014) The Evolution of Index Signals to Avoid the Cost of Dishonesty. Proceedings of the Royal Society B: Biological Sciences, 281, pii: 20140876.
 Pitchik, C. and Schotter, A. (1987) Honesty in a Model of Strategic Information Transmission. American Economic Review, 77, 1032-1036.
 Monroe, K.B. (1973) Buyers’ Subjective Perceptions of Price. Journal of Marketing Research, 10, 70.
 Farrell, J. (1980) Prices as Signals of Quality. Ph.D. Thesis, University of Oxford, Oxford.
 Wolinsky, A. (1983) Prices as Signals of Product Quality. Review of Economic Studies, 50, 647-658.
 Gerstner, E. (1985) Do Higher Prices Signal Higher Quality? Journal of Marketing Research, 22, 209-215.
 Tellis, G.J. and Wernerfelt, B. (1987) Competitive Price and Quality under Asymmetric Information. Marketing Science, 6, 240-253.
 Zeithaml, V.A. (1988) Consumer Perceptions of Price, Quality and Value: A Means End Model and Synthesis of Evidence. Journal of Marketing, 52, 2-22.
 Bagwell, K. and Riordan, M.H. (1991) High and Declining Prices Signal Product Quality. American Economic Review, 81, 224-239.
 Milgrom, P. and Roberts, J. (1986) Price and Advertising Signals of Product Quality. Journal of Political Economy, 94, 796-821.
 Sahni, N.S. and Nair, H.S. (2016) Does Advertising Serve as a Signal? Evidence from Field Experiments in Mobile Search.
 Tsui, H.-C. (2012) Advertising, Quality, and Willingness-to-Pay: Experimental Examination of Signaling Theory. Journal of Economic Psychology, 33, 1193-1203.
 Glazer, J. and Mcguire, T. (1993) The Economics of Referrals. IIBR Working Paper No. 31/93, Tel Aviv University, Tel Aviv.
 Van Den Bulte, C., Bayer, E., Skiera, B. and Schmitt, P. (2018) How Customer Referral Programs Turn Social Capital into Economic Capital. Journal of Marketing Research, 55, 132-146.
 Cramer, C., Johnston, D., Mueller, B., Oya, C. and Sender, J. (2016) Fairtrade and Labour Markets in Ethiopia and Uganda. The Journal of Development Studies, 53, 841-856.
 Bonroy, O. and Constantatos, C. (2008) On the Use of Labels in Credence Goods Markets. Journal of Regulatory Economics, 33, 237-252.
 Wernerfelt, B. (1988) Umbrella Branding as a Signal of New Product Quality: An Example of Signalling by Posting a Bond. The RAND Journal of Economics, 19, 458.
 Lizzeri, A. (1999) Information Revelation and Certification Intermediaries. The RAND Journal of Economics, 30, 214-231.
 Auriol, E. and Schilizzi, S. (2001) Quality Signaling through Certification: Theory and an Application to Agricultural Seed Markets. Mimeo IDEI Toulouse.
 Stahl, K. and Strausz, R. (2017) Certification and Market Transparency. The Review of Economic Studies, 84, 1842-1868.
 Mason, C. (2011) Eco-Labeling and Market Equilibria with Noisy Certification Tests. Environmental and Resource Economics, 48, 537-560.
 Mishra, D.P., Heide, J.B. and Cort, S.G. (1998) Information Asymmetry and Levels of Agency Relationships. Journal of Marketing Research, 35, 277.
 Bolton, P. and Dewatripont, M. (2005) Contract Theory. MIT Press, Cam-bridge.
 Chan, T., Murphy, A. and Wang, L. (2018) Information Asymmetry, Manufacturer-Retailer Contracts, and Two-Sided Entry. International Economic Review, 59, 2163-2191.
 Biglaiser, G. and Li, F. (2018) Middlemen: The Good, the Bad, and the Ugly. The RAND Journal of Economics, 49, 3-22.
 Nastiti, A., Muntalif, B.S., Roosmini, D., Sudradjat, A., Meijerink, S.V. and Smits, A.J.M. (2017) Coping with Poor Water Supply in Peri-Urban Bandung, Indonesia: Towards a Framework for Under-standing Risks and Aversion Behaviours. Environment and Urbanization, 29, 69-88.
 Michaelidou, N. and Hassan, L.M. (2008) The Role of Health Conscious-ness, Food Safety Concern and Ethical Identity on Attitudes and Intentions towards Organic Food. International Journal of Consumer Studies, 32, 163-170.
 Vollmer Dahlke, D., Fair, K., Hong, Y.A., Beaudoin, C.E., Pulczinski, J. and Ory, M.G. (2015) Apps Seeking Theories: Results of a Study on the Use of Health Behavior Change Theories in Cancer Survivorship Mobile Apps. JMIR mHealth and uHealth, 3, e31.
 Mustafa, D. and Talozi, S. (2018) Tankers, Wells, Pipes and Pumps: Agents and Mediators of Water Geographies in Amman, Jordan. Water Alternatives, 11, 916-932.
 Ahmad, M.T. (2016) The Role of Water Vendors in Water Service Delivery in Developing Countries: A Case of Dala Local Government, Kano, Nigeria. Applied Water Science, 7, 1191-1201.
 Akpe, A. (2011) Nigeria: Brisk Water Business.
 Ayalew, M., Chenoweth, J., Malcolm, R., Mulugetta, Y., Okotto, L.G. and Pedley, S. (2013) Small Independent Water Providers: Their Position in the Regulatory Framework for the Supply of Water in Kenya and Ethiopia. Journal of Environmental Law, 26, 105-128.
 Chauhan, A., Goyal, P., Varma, A. and Jindal, T. (2015) Microbiological Evaluation of Drinking Water Sold by Roadside Vendors of Delhi, India. Applied Water Science, 7, 1635-1644.
 Hajli, N. (2014) A Study of the Impact of Social Media on Consumers. International Journal of Market Research, 56, 388-404.
 Tewatia, et al. (2017) App-Based Water Tanker Booking, Monitoring and Controlling System. International Journal of Science Technology and Engineering, 3, 238-248.
 Andrici, M. (2012) mWater Is an Android App That Tracks Water Quality Results, Could Save Plenty of Lives.
 Jamaluddin, A., Harjunowibowo, D., Rahardjo, D.T., Adhitama, E. and Hadi, S. (2016) Wireless Water Flow Monitoring Based on Android Smartphone. 2nd International Confer-ence of Industrial, Mechanical, Electrical, and Chemical Engineering, Yogyakarta, 6-7 October 2016, 243-247.
 Kaleel, S.B. and Harishankar, S. (2013) Applying Agile Methodology in Mobile Software Engineering: Android Application Development and Its Challenges. Computer Science Technical Reports. Paper 4.